Add 72/28 and 42/16, Solve 2 16/28 + 2 10/16 as a fraction

Add 72/28 and 42/16

1^st number: 2 16/28, 2^nd number: 2 10/16

72/28 + 42/16 is 291/56.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 16 is 112

Next, find the equivalent fraction of both fractional numbers with denominator 112
For the 1st fraction, since 28 × 4 = 112,
72/28 = 72 × 4/28 × 4 = 288/112
Likewise, for the 2nd fraction, since 16 × 7 = 112,
42/16 = 42 × 7/16 × 7 = 294/112
Add the two like fractions:
288/112 + 294/112 = 288 + 294/112 = 582/112
582/112 simplified gives 291/56
So, 72/28 + 42/16 = 291/56
In mixed form: 511/56

MathStep (Works offline)

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