Add 10/21 and 49/56
10/21 + 49/56 is 227/168.
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,
10/21 = 10 × 8/21 × 8 = 80/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
49/56 = 49 × 3/56 × 3 = 147/168 - Add the two like fractions:
80/168 + 147/168 = 80 + 147/168 = 227/168 - So, 10/21 + 49/56 = 227/168
In mixed form: 159/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/21+49/56 10/21+98/56 10/42+49/56 30/21+49/56 10/63+49/56 50/21+49/56 70/21+49/56