Add 72/56 and 20/32
1st number: 1 16/56, 2nd number: 20/32
72/56 + 20/32 is 107/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 32 is 224
Next, find the equivalent fraction of both fractional numbers with denominator 224 - For the 1st fraction, since 56 × 4 = 224,
72/56 = 72 × 4/56 × 4 = 288/224 - Likewise, for the 2nd fraction, since 32 × 7 = 224,
20/32 = 20 × 7/32 × 7 = 140/224 - Add the two like fractions:
288/224 + 140/224 = 288 + 140/224 = 428/224 - 428/224 simplified gives 107/56
- So, 72/56 + 20/32 = 107/56
In mixed form: 151/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/56+40/32 72/56+20/64 72/56+60/32 72/56+20/96