Add 16/28 and 56/72
16/28 + 56/72 is 85/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 28 × 18 = 504,
16/28 = 16 × 18/28 × 18 = 288/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
56/72 = 56 × 7/72 × 7 = 392/504 - Add the two like fractions:
288/504 + 392/504 = 288 + 392/504 = 680/504 - 680/504 simplified gives 85/63
- So, 16/28 + 56/72 = 85/63
In mixed form: 122/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/28+56/72 16/56+56/72 48/28+56/72 16/84+56/72 80/28+56/72