Add 15/12 and 21/32
1st number: 1 3/12, 2nd number: 21/32
15/12 + 21/32 is 61/32.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 32 is 96
Next, find the equivalent fraction of both fractional numbers with denominator 96 - For the 1st fraction, since 12 × 8 = 96,
15/12 = 15 × 8/12 × 8 = 120/96 - Likewise, for the 2nd fraction, since 32 × 3 = 96,
21/32 = 21 × 3/32 × 3 = 63/96 - Add the two like fractions:
120/96 + 63/96 = 120 + 63/96 = 183/96 - 183/96 simplified gives 61/32
- So, 15/12 + 21/32 = 61/32
In mixed form: 129/32
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/12+21/32 15/12+42/32 15/24+21/32 15/12+21/64 45/12+21/32 15/12+63/32 15/36+21/32 15/12+21/96 75/12+21/32 15/60+21/32 15/84+21/32