Add 56/48 and 20/70, Solve 1 8/48 + 20/70 as a fraction

Add 56/48 and 20/70

1^st number: 1 8/48, 2^nd number: 20/70

56/48 + 20/70 is 61/42.

Find the least common denominator or LCM of the two denominators:
LCM of 48 and 70 is 1680

Next, find the equivalent fraction of both fractional numbers with denominator 1680
For the 1st fraction, since 48 × 35 = 1680,
56/48 = 56 × 35/48 × 35 = 1960/1680
Likewise, for the 2nd fraction, since 70 × 24 = 1680,
20/70 = 20 × 24/70 × 24 = 480/1680
Add the two like fractions:
1960/1680 + 480/1680 = 1960 + 480/1680 = 2440/1680
2440/1680 simplified gives 61/42
So, 56/48 + 20/70 = 61/42
In mixed form: 119/42

MathStep (Works offline)

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