Add 70/21 and 9/56
1st number: 3 7/21, 2nd number: 9/56
70/21 + 9/56 is 587/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
70/21 = 70 × 8/21 × 8 = 560/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
9/56 = 9 × 3/56 × 3 = 27/168 - Add the two like fractions:
560/168 + 27/168 = 560 + 27/168 = 587/168 - So, 70/21 + 9/56 = 587/168
In mixed form: 383/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/21+18/56 70/42+9/56 70/21+27/56 70/63+9/56 70/21+45/56 70/21+63/56