Add 20/36 and 9/7
1st number: 20/36, 2nd number: 1 2/7
20/36 + 9/7 is 116/63.
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,
20/36 = 20 × 7/36 × 7 = 140/252 - Likewise, for the 2nd fraction, since 7 × 36 = 252,
9/7 = 9 × 36/7 × 36 = 324/252 - Add the two like fractions:
140/252 + 324/252 = 140 + 324/252 = 464/252 - 464/252 simplified gives 116/63
- So, 20/36 + 9/7 = 116/63
In mixed form: 153/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/36+9/7 20/36+18/7 20/72+9/7 20/36+9/14 60/36+9/7 20/36+27/7 20/36+9/21 20/36+45/7 20/36+9/35 20/36+63/7 20/36+9/49