Add 25/21 and 70/96, Solve 1 4/21 + 70/96 as a fraction

Add 25/21 and 70/96

1^st number: 1 4/21, 2^nd number: 70/96

25/21 + 70/96 is 215/112.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 96 is 672

Next, find the equivalent fraction of both fractional numbers with denominator 672
For the 1st fraction, since 21 × 32 = 672,
25/21 = 25 × 32/21 × 32 = 800/672
Likewise, for the 2nd fraction, since 96 × 7 = 672,
70/96 = 70 × 7/96 × 7 = 490/672
Add the two like fractions:
800/672 + 490/672 = 800 + 490/672 = 1290/672
1290/672 simplified gives 215/112
So, 25/21 + 70/96 = 215/112
In mixed form: 1103/112

MathStep (Works offline)

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