Add 10/7 and 4/72, Solve 1 3/7 + 4/72 as a fraction

Add 10/7 and 4/72

1^st number: 1 3/7, 2^nd number: 4/72

10/7 + 4/72 is 187/126.

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,
10/7 = 10 × 72/7 × 72 = 720/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
4/72 = 4 × 7/72 × 7 = 28/504
Add the two like fractions:
720/504 + 28/504 = 720 + 28/504 = 748/504
748/504 simplified gives 187/126
So, 10/7 + 4/72 = 187/126
In mixed form: 161/126

MathStep (Works offline)

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