Add 21/25 and 56/7, Solve 21/25 + 8 0/7 as a fraction

Add 21/25 and 56/7

1^st number: 21/25, 2^nd number: 8 0/7

21/25 + 56/7 is 221/25.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 7 is 175

Next, find the equivalent fraction of both fractional numbers with denominator 175
For the 1st fraction, since 25 × 7 = 175,
21/25 = 21 × 7/25 × 7 = 147/175
Likewise, for the 2nd fraction, since 7 × 25 = 175,
56/7 = 56 × 25/7 × 25 = 1400/175
Add the two like fractions:
147/175 + 1400/175 = 147 + 1400/175 = 1547/175
1547/175 simplified gives 221/25
So, 21/25 + 56/7 = 221/25
In mixed form: 821/25

MathStep (Works offline)

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