Add 20/12 and 21/48
1st number: 1 8/12, 2nd number: 21/48
20/12 + 21/48 is 101/48.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 48 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 12 × 4 = 48,
20/12 = 20 × 4/12 × 4 = 80/48 - Likewise, for the 2nd fraction, since 48 × 1 = 48,
21/48 = 21 × 1/48 × 1 = 21/48 - Add the two like fractions:
80/48 + 21/48 = 80 + 21/48 = 101/48 - So, 20/12 + 21/48 = 101/48
In mixed form: 25/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12+21/48 20/12+42/48 20/24+21/48 20/12+21/96 60/12+21/48 20/12+63/48 20/36+21/48 20/60+21/48 20/84+21/48