Add 70/49 and 21/8
1st number: 1 21/49, 2nd number: 2 5/8
70/49 + 21/8 is 227/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 8 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 49 × 8 = 392,
70/49 = 70 × 8/49 × 8 = 560/392 - Likewise, for the 2nd fraction, since 8 × 49 = 392,
21/8 = 21 × 49/8 × 49 = 1029/392 - Add the two like fractions:
560/392 + 1029/392 = 560 + 1029/392 = 1589/392 - 1589/392 simplified gives 227/56
- So, 70/49 + 21/8 = 227/56
In mixed form: 43/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/49+42/8 70/98+21/8 70/49+21/16 70/49+63/8 70/49+21/24 70/49+21/40 70/49+21/56