Add 15/21 and 63/48
1st number: 15/21, 2nd number: 1 15/48
15/21 + 63/48 is 227/112.
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,
15/21 = 15 × 16/21 × 16 = 240/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
63/48 = 63 × 7/48 × 7 = 441/336 - Add the two like fractions:
240/336 + 441/336 = 240 + 441/336 = 681/336 - 681/336 simplified gives 227/112
- So, 15/21 + 63/48 = 227/112
In mixed form: 23/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/21+63/48 15/42+63/48 15/21+63/96 45/21+63/48 15/63+63/48 75/21+63/48