Add 72/14 and 21/36
1st number: 5 2/14, 2nd number: 21/36
72/14 + 21/36 is 481/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 14 × 18 = 252,
72/14 = 72 × 18/14 × 18 = 1296/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
21/36 = 21 × 7/36 × 7 = 147/252 - Add the two like fractions:
1296/252 + 147/252 = 1296 + 147/252 = 1443/252 - 1443/252 simplified gives 481/84
- So, 72/14 + 21/36 = 481/84
In mixed form: 561/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/14+42/36 72/28+21/36 72/14+21/72 72/14+63/36 72/42+21/36 72/70+21/36 72/98+21/36