Add 20/12 and 63/72
1st number: 1 8/12, 2nd number: 63/72
20/12 + 63/72 is 61/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 12 × 6 = 72,
20/12 = 20 × 6/12 × 6 = 120/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
63/72 = 63 × 1/72 × 1 = 63/72 - Add the two like fractions:
120/72 + 63/72 = 120 + 63/72 = 183/72 - 183/72 simplified gives 61/24
- So, 20/12 + 63/72 = 61/24
In mixed form: 213/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12+63/72 20/24+63/72 60/12+63/72 20/36+63/72 20/60+63/72 20/84+63/72