Add 70/7 and 21/56
1st number: 10 0/7, 2nd number: 21/56
70/7 + 21/56 is 83/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
70/7 = 70 × 8/7 × 8 = 560/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
21/56 = 21 × 1/56 × 1 = 21/56 - Add the two like fractions:
560/56 + 21/56 = 560 + 21/56 = 581/56 - 581/56 simplified gives 83/8
- So, 70/7 + 21/56 = 83/8
In mixed form: 103/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/7+42/56 70/14+21/56 70/7+63/56 70/21+21/56 70/35+21/56 70/49+21/56