Add 21/49 and 54/48
1st number: 21/49, 2nd number: 1 6/48
21/49 + 54/48 is 87/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 48 is 2352
Next, find the equivalent fraction of both fractional numbers with denominator 2352 - For the 1st fraction, since 49 × 48 = 2352,
21/49 = 21 × 48/49 × 48 = 1008/2352 - Likewise, for the 2nd fraction, since 48 × 49 = 2352,
54/48 = 54 × 49/48 × 49 = 2646/2352 - Add the two like fractions:
1008/2352 + 2646/2352 = 1008 + 2646/2352 = 3654/2352 - 3654/2352 simplified gives 87/56
- So, 21/49 + 54/48 = 87/56
In mixed form: 131/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/49+54/48 21/98+54/48 21/49+54/96 63/49+54/48