Add 15/56 and 42/48
15/56 + 42/48 is 8/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 56 × 6 = 336,
15/56 = 15 × 6/56 × 6 = 90/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
42/48 = 42 × 7/48 × 7 = 294/336 - Add the two like fractions:
90/336 + 294/336 = 90 + 294/336 = 384/336 - 384/336 simplified gives 8/7
- So, 15/56 + 42/48 = 8/7
In mixed form: 11/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/56+42/48 15/56+84/48 15/56+42/96 45/56+42/48 75/56+42/48