Add 6/21 and 21/48
6/21 + 21/48 is 81/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
6/21 = 6 × 16/21 × 16 = 96/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
21/48 = 21 × 7/48 × 7 = 147/336 - Add the two like fractions:
96/336 + 147/336 = 96 + 147/336 = 243/336 - 243/336 simplified gives 81/112
- So, 6/21 + 21/48 = 81/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21+21/48 6/21+42/48 6/42+21/48 6/21+21/96 18/21+21/48 6/21+63/48 6/63+21/48 30/21+21/48 42/21+21/48