Add 90/63 and 6/70, Solve 1 27/63 + 6/70 as a fraction

Add 90/63 and 6/70

1^st number: 1 27/63, 2^nd number: 6/70

90/63 + 6/70 is 53/35.

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,
90/63 = 90 × 10/63 × 10 = 900/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
6/70 = 6 × 9/70 × 9 = 54/630
Add the two like fractions:
900/630 + 54/630 = 900 + 54/630 = 954/630
954/630 simplified gives 53/35
So, 90/63 + 6/70 = 53/35
In mixed form: 118/35

MathStep (Works offline)

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