Add 16/72 and 15/9, Solve 16/72 + 1 6/9 as a fraction

Add 16/72 and 15/9

1^st number: 16/72, 2^nd number: 1 6/9

16/72 + 15/9 is 17/9.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 9 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 72 × 1 = 72,
16/72 = 16 × 1/72 × 1 = 16/72
Likewise, for the 2nd fraction, since 9 × 8 = 72,
15/9 = 15 × 8/9 × 8 = 120/72
Add the two like fractions:
16/72 + 120/72 = 16 + 120/72 = 136/72
136/72 simplified gives 17/9
So, 16/72 + 15/9 = 17/9
In mixed form: 18/9

MathStep (Works offline)

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