Add 72/36 and 9/7
1st number: 2 0/36, 2nd number: 1 2/7
72/36 + 9/7 is 23/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 7 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
72/36 = 72 × 7/36 × 7 = 504/252 - Likewise, for the 2nd fraction, since 7 × 36 = 252,
9/7 = 9 × 36/7 × 36 = 324/252 - Add the two like fractions:
504/252 + 324/252 = 504 + 324/252 = 828/252 - 828/252 simplified gives 23/7
- So, 72/36 + 9/7 = 23/7
In mixed form: 32/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/36+18/7 72/36+9/14 72/36+27/7 72/36+9/21 72/36+45/7 72/36+9/35 72/36+63/7 72/36+9/49