Add 20/12 and 81/48
1st number: 1 8/12, 2nd number: 1 33/48
20/12 + 81/48 is 161/48.
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,
81/48 = 81 × 1/48 × 1 = 81/48 - Add the two like fractions:
80/48 + 81/48 = 80 + 81/48 = 161/48 - So, 20/12 + 81/48 = 161/48
In mixed form: 317/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12+81/48 20/24+81/48 20/12+81/96 60/12+81/48 20/36+81/48 20/60+81/48 20/84+81/48