Add 72/7 and 6/63, Solve 10 2/7 + 6/63 as a fraction

Add 72/7 and 6/63

1^st number: 10 2/7, 2^nd number: 6/63

72/7 + 6/63 is 218/21.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 63 is 63

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 7 × 9 = 63,
72/7 = 72 × 9/7 × 9 = 648/63
Likewise, for the 2nd fraction, since 63 × 1 = 63,
6/63 = 6 × 1/63 × 1 = 6/63
Add the two like fractions:
648/63 + 6/63 = 648 + 6/63 = 654/63
654/63 simplified gives 218/21
So, 72/7 + 6/63 = 218/21
In mixed form: 108/21

MathStep (Works offline)

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