Depending on how you are wired to think, it might be useful to think about it like this…Look at the denominator in the fraction - the bottom bit.It’s 7, so let’s put it out there that our “whole thing” is composed of 7 equal bits.If we take one bit away, we are left with 6 bits. If we take another bit away, we are left with 5 bits. But hang on!The 2 bits we took away are 2 bits of 7, or 2/7 of what we started with.What we have left is 5 of the 7 bits, or 5/7 of what we started with. That’s your answer. Why? Because if we put the 2/7 and the 5/7 back together we get our “whole”!
Solve for A in B=2/7(A-9) 2/7 is a fraction?
If B = 2/7(A - 9), multiply both sides by 7/2. (7/2)B = (7/2)(2/7)(A - 9) (7/2)B = A - 9. Add 9 to both sides. A = (7/2)B + 9.
Math problems... :adding fractions?
In each question add the whole numbers first. Then add the fractions in this case they all have the same denominators (bottom i.e 1/9 + 4/9) so just add the numerators i.e the tops together eg 1/9 + 5/9 = 6/9 = 2/3 1. 2 7/9 + 3 5/9 =5 + 7/9 + 5/9 =5 + 12/9 =6 + 3/9 =6 1/3 2. 4 1/2 + 2 1/2 =6 + 1/2 + 1/2 = 6 + 2/2 = 7 3. 1 5/6 + 7 5/6 = 8 + 5/6 + 5/6 = 8 + 10/6 = 9 + 4/6 = 9 2/3 4. 3 5/8 + 3 5/8 =6 + 5/8 + 5/8 =6 + 10/8 =7 + 2/8 = 7 1/4 5. 1 8/9 + 5 4/9 =6 + 8/9 + 4/9 = 6 + 12/9 = 7 + 3/9 = 7 1/3 6. 1 13/15 + 4 11/15 = 5 + 13/15 + 11/15 = 5 + 24/15 = 6 + 9/15 = 6 3/5 7. 7 6/7 + 4 5/7 = 11 + 6/7 + 5/7 = 11 + 11/7 = 12 4/7 8. 5 5/6 + 9 3/6 = 14 + 5/6 + 3/6 = 14 + 8/6 = 15 + 2/6 = 15 1/3 9. 8 13/20 + 6 9/20 = 14 + 13/20 + 9/20 = 14 + 22/20 = 15 + 2/20 = 15 1/10 10. 3 4/9 + 9 5/9 = 12 + 4/9 + 5/9 = 12 + 9/9 = 13 11. 26 3/8 + 12 7/8 = 38 + 3/8 + 7/8 = 38 + 10/8 = 39 + 2/8 = 39 1/4 12. 24 11/16 + 42 9/16 = 66 + 11/16 + 9/16 = 66 + 20/16 = 67 + 4/16 = 67 1/4 your edit 34 12/16+ 42 9/16 = 76 + 12/16 + 9/16 = 76 + 21/16 = 77 5/16 13. 78 4/9 + 11 7/9 = 89 + 4/9 + 7/9 = 89 + 11/9 = 90 2/9 14. 63 9/10 + 86 7/10 = 149 + 9/10 + 7/10 = 149 + 16/10 = 150 + 6/10 = 150 3/5
Adding fractions is really quite simple once you have the hang of it. It’s just a matter of learning the process.Just in case, I’ll repeat that the bottom number of a fraction is called the denominator, and the top number the numerator.For fractions with the same denominator:For fractions of the same denominator, adding them is very easy. You simply add the two (or more) numerators together and put it on top of the shared denominator. AFter this, you can simplify the fraction if necessary.Eg: 3/7 + 6/7 = 6+3/7 = 9/7 = 1 and 2/7Eg: 1/12 + 3/12 + 2/12 = 1+3+2/12 = 6/12 = 1/2For fractions with different denominators:If your fractions have different denominators, the process is a bit different, but don’t worry! It’s really quite simple. Essentially, you just have to find the HCD, Highest Common Denominator of the fractions. The HCD is really just the LCM of the denominators.First, find the HCD. This can be the LCM of the numbers, however it is sometimes simpler to just multiply the numbers together. Eg: 5/6, 3/5. The HCD of 5 and 6 (the two denominators) is 5 x 6 = 30. If you had 5/6, 3/5 and 1/2, it can still be 30, because 30 is also divisible by 2.Once you find the HCD, convert all the fractions to an equivalent fraction with the HCD as their denominator. In the above example, this means that: 5/6 = 5*5/6*5 (as 6 is multiplied by 5 to become 30, and the same thing is done to the numerator and denominator to make it equivalent) = 25/30. 3/5 = 3*6/5*6 = 18/30. 1/2 = 1*15/2*15 = 15/30.Once all the fractions have the same denominator, again, just add together the numerators and put the sum on top of the shared denominator. Eg: 25/30 + 18/30 + 15/30 = 25+18+15/30 = 58/30 = 1 and 14/15.Examples:1/4 + 2/4 = 1+2/4 = 3/42/5 + 4/5 + 3/5 = 1+4+3/5 = 9/5 = 1 and 4/57/9 + 5/6 → HCD (LCM of numerators) = 187/9 + 5/6 = 7*2/9*2 + 5*3/6*3 = 14/18 + 15/18 = 29/18 = 1 and 11/18
Math for grade school! Help!! Adding dissimilar fractions.?
Find the sum. Express the answers in lowest terms. 1.) 1/3 + 1/2 = _____ 6.) 4/5 + 2/7 = _____ 2.) 3/4 + 2/3 = _____ 7.) 1/7 + 3/4 = _____ 3.) 1/5 + 1/4 = _____ 8.) 6/7 + 2/3 = _____ 4.) 3/5 + 2/3 = _____ 9.) 7/8 + 3/4 = _____ 5.) 7/9 + 5/9 = _____ 10.) 8/9 + 3/4 = _____ Kindly explain your answers and how did you solved it how did you turn it to similar fraction and how did you know the numerator and denominator how did you do it??????? Please help!! This is very important!! I need to learn this. Please explain.
Fractions help..? I forgot how they work?
3/7 + 2/7 = 5/7 (add the numerators) --------------------------------- 2/3 + 1/4 Find the least common multiple (which is 12) 8/12 + 3/12 = 11/12 ----------------------------------- 1and1/2 + 2and1/3= Change to improper 3/2 + 7/3 The LCD is 6 9/6 + 14/6 = 19/6, which is 3 and 1/6 ------------------------------------- 5 - 3/8= LCD is 8 40/8 - 3/8 = 37/8, which is 4 and 6/8, reduces to 4 and 3/4 --------------------------------------... 2and3/5 - 1and1/4= Change to improper 13/5 - 5/4 LCD is 20 52/20 - 25/20 = 27/20, which is 1 and 7/20 ------------------------------------- 2and1/2 + 3and3/5= Change to improper 5/2 + 18/5 LCD is 10 25/10 + 36/10 = 61/10, which is 6 and 1/10 --------------------------------------... 5 - 3and1/3= Change to improper 5 - 10/3 LCD is 3 15/3 - 10/3 = 5/3, which is 1 and 2/3 --------------------------------------... 8and1/3 - 6and3/4= Change to improper 25/3 - 27/4 LCD is 12 100/12 - 81/12 = 19/12, which is 1 and 7/12 --------------------------------------... 3and2/5 + 7and6/7= Change to improper 17/5 + 55/7 LCD is 35 119/35 + 275/35 = 394/35, which is 11 and 9/35 --------------------------------------... 8and1/5 + 6and2/3= 41/5 + 20/3 LCD is 15 123/15 + 100/15 = 223/15, which is 14 and 13/15
the denominator of a fraction is the number on the bottom, or the number that the other number (the numerator) is being divided by. In this case, the denominator would be 7.Denominator(4/7): 7
How do I convert: 4 and 5/8 to improper fraction?
You have the numbers 4 and 5/8. Change them both to the same denominator. In this case, the easiest denominator is 8, so the two numbers become 32/8 and 5/8 Since they have the same denominators, you add the numerators (32 + 5) and place the answer over the denominator. Your answer is 37/8