Add 2/56 and 21/84
2/56 + 21/84 is 2/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
2/56 = 2 × 3/56 × 3 = 6/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
21/84 = 21 × 2/84 × 2 = 42/168 - Add the two like fractions:
6/168 + 42/168 = 6 + 42/168 = 48/168 - 48/168 simplified gives 2/7
- So, 2/56 + 21/84 = 2/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/56+21/84 2/56+42/84 6/56+21/84 2/56+63/84 10/56+21/84 14/56+21/84