Add 27/70 and 56/45, Solve 27/70 + 1 11/45 as a fraction

Add 27/70 and 56/45

1^st number: 27/70, 2^nd number: 1 11/45

27/70 + 56/45 is 1027/630.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 45 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 70 × 9 = 630,
27/70 = 27 × 9/70 × 9 = 243/630
Likewise, for the 2nd fraction, since 45 × 14 = 630,
56/45 = 56 × 14/45 × 14 = 784/630
Add the two like fractions:
243/630 + 784/630 = 243 + 784/630 = 1027/630
So, 27/70 + 56/45 = 1027/630
In mixed form: 1397/630

MathStep (Works offline)

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