Add 15/7 and 14/72, Solve 2 1/7 + 14/72 as a fraction

Add 15/7 and 14/72

1^st number: 2 1/7, 2^nd number: 14/72

15/7 + 14/72 is 589/252.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 72 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 7 × 72 = 504,
15/7 = 15 × 72/7 × 72 = 1080/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
14/72 = 14 × 7/72 × 7 = 98/504
Add the two like fractions:
1080/504 + 98/504 = 1080 + 98/504 = 1178/504
1178/504 simplified gives 589/252
So, 15/7 + 14/72 = 589/252
In mixed form: 285/252

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad