Add 72/14 and 21/60
1st number: 5 2/14, 2nd number: 21/60
72/14 + 21/60 is 769/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 14 × 30 = 420,
72/14 = 72 × 30/14 × 30 = 2160/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
21/60 = 21 × 7/60 × 7 = 147/420 - Add the two like fractions:
2160/420 + 147/420 = 2160 + 147/420 = 2307/420 - 2307/420 simplified gives 769/140
- So, 72/14 + 21/60 = 769/140
In mixed form: 569/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/14+42/60 72/28+21/60 72/14+63/60 72/42+21/60 72/70+21/60 72/98+21/60