Add 16/72 and 45/7, Solve 16/72 + 6 3/7 as a fraction

Add 16/72 and 45/7

1^st number: 16/72, 2^nd number: 6 3/7

16/72 + 45/7 is 419/63.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 7 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 72 × 7 = 504,
16/72 = 16 × 7/72 × 7 = 112/504
Likewise, for the 2nd fraction, since 7 × 72 = 504,
45/7 = 45 × 72/7 × 72 = 3240/504
Add the two like fractions:
112/504 + 3240/504 = 112 + 3240/504 = 3352/504
3352/504 simplified gives 419/63
So, 16/72 + 45/7 = 419/63
In mixed form: 641/63

MathStep (Works offline)

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