Add 72/14 and 21/5
1st number: 5 2/14, 2nd number: 4 1/5
72/14 + 21/5 is 327/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 5 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 14 × 5 = 70,
72/14 = 72 × 5/14 × 5 = 360/70 - Likewise, for the 2nd fraction, since 5 × 14 = 70,
21/5 = 21 × 14/5 × 14 = 294/70 - Add the two like fractions:
360/70 + 294/70 = 360 + 294/70 = 654/70 - 654/70 simplified gives 327/35
- So, 72/14 + 21/5 = 327/35
In mixed form: 912/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/14+42/5 72/28+21/5 72/14+21/10 72/14+63/5 72/42+21/5 72/14+21/15 72/70+21/5 72/14+21/25 72/98+21/5 72/14+21/35