Add 24/21 and 7/16, Solve 1 3/21 + 7/16 as a fraction

Add 24/21 and 7/16

1^st number: 1 3/21, 2^nd number: 7/16

24/21 + 7/16 is 177/112.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 21 × 16 = 336,
24/21 = 24 × 16/21 × 16 = 384/336
Likewise, for the 2nd fraction, since 16 × 21 = 336,
7/16 = 7 × 21/16 × 21 = 147/336
Add the two like fractions:
384/336 + 147/336 = 384 + 147/336 = 531/336
531/336 simplified gives 177/112
So, 24/21 + 7/16 = 177/112
In mixed form: 165/112

MathStep (Works offline)

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