Add 84/48 and 21/9
1st number: 1 36/48, 2nd number: 2 3/9
84/48 + 21/9 is 49/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 9 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 48 × 3 = 144,
84/48 = 84 × 3/48 × 3 = 252/144 - Likewise, for the 2nd fraction, since 9 × 16 = 144,
21/9 = 21 × 16/9 × 16 = 336/144 - Add the two like fractions:
252/144 + 336/144 = 252 + 336/144 = 588/144 - 588/144 simplified gives 49/12
- So, 84/48 + 21/9 = 49/12
In mixed form: 41/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/48+42/9 84/96+21/9 84/48+21/18 84/48+63/9 84/48+21/27 84/48+21/45 84/48+21/63