Add 16/42 and 56/72
16/42 + 56/72 is 73/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 42 × 12 = 504,
16/42 = 16 × 12/42 × 12 = 192/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
56/72 = 56 × 7/72 × 7 = 392/504 - Add the two like fractions:
192/504 + 392/504 = 192 + 392/504 = 584/504 - 584/504 simplified gives 73/63
- So, 16/42 + 56/72 = 73/63
In mixed form: 110/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/42+56/72 16/84+56/72 48/42+56/72 80/42+56/72