Add 50/63 and 72/70, Solve 50/63 + 1 2/70 as a fraction

Add 50/63 and 72/70

1^st number: 50/63, 2^nd number: 1 2/70

50/63 + 72/70 is 82/45.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 70 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 63 × 10 = 630,
50/63 = 50 × 10/63 × 10 = 500/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
72/70 = 72 × 9/70 × 9 = 648/630
Add the two like fractions:
500/630 + 648/630 = 500 + 648/630 = 1148/630
1148/630 simplified gives 82/45
So, 50/63 + 72/70 = 82/45
In mixed form: 137/45

MathStep (Works offline)

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