Add 25/3 and 32/21, Solve 8 1/3 + 1 11/21 as a fraction

Add 25/3 and 32/21

1^st number: 8 1/3, 2^nd number: 1 11/21

25/3 + 32/21 is 69/7.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 21 is 21

Next, find the equivalent fraction of both fractional numbers with denominator 21
For the 1st fraction, since 3 × 7 = 21,
25/3 = 25 × 7/3 × 7 = 175/21
Likewise, for the 2nd fraction, since 21 × 1 = 21,
32/21 = 32 × 1/21 × 1 = 32/21
Add the two like fractions:
175/21 + 32/21 = 175 + 32/21 = 207/21
207/21 simplified gives 69/7
So, 25/3 + 32/21 = 69/7
In mixed form: 96/7

MathStep (Works offline)

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