Add 48/8 and 21/12
1st number: 6 0/8, 2nd number: 1 9/12
48/8 + 21/12 is 31/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 12 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
48/8 = 48 × 3/8 × 3 = 144/24 - Likewise, for the 2nd fraction, since 12 × 2 = 24,
21/12 = 21 × 2/12 × 2 = 42/24 - Add the two like fractions:
144/24 + 42/24 = 144 + 42/24 = 186/24 - 186/24 simplified gives 31/4
- So, 48/8 + 21/12 = 31/4
In mixed form: 73/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/8+21/12 48/8+42/12 48/16+21/12 48/8+21/24 48/8+63/12 48/24+21/12 48/8+21/36 48/40+21/12 48/8+21/60 48/56+21/12 48/8+21/84