Add 54/48 and 21/84
1st number: 1 6/48, 2nd number: 21/84
54/48 + 21/84 is 11/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 84 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
54/48 = 54 × 7/48 × 7 = 378/336 - Likewise, for the 2nd fraction, since 84 × 4 = 336,
21/84 = 21 × 4/84 × 4 = 84/336 - Add the two like fractions:
378/336 + 84/336 = 378 + 84/336 = 462/336 - 462/336 simplified gives 11/8
- So, 54/48 + 21/84 = 11/8
In mixed form: 13/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/48+42/84 54/96+21/84 54/48+63/84