Add 42/7 and 56/72
1st number: 6 0/7, 2nd number: 56/72
42/7 + 56/72 is 61/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 7 × 72 = 504,
42/7 = 42 × 72/7 × 72 = 3024/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
56/72 = 56 × 7/72 × 7 = 392/504 - Add the two like fractions:
3024/504 + 392/504 = 3024 + 392/504 = 3416/504 - 3416/504 simplified gives 61/9
- So, 42/7 + 56/72 = 61/9
In mixed form: 67/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/7+56/72 42/14+56/72 42/21+56/72 42/35+56/72 42/49+56/72