Subtract 10/72 from 90/16, Solve 5 10/16

Subtract 10/72 from 90/16

1^st number: 5 10/16, 2^nd number: 10/72

90/16 - 10/72 is 395/72.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 72 is 144

Next, find the equivalent fraction of both fractional numbers with denominator 144
For the 1st fraction, since 16 × 9 = 144,
90/16 = 90 × 9/16 × 9 = 810/144
Likewise, for the 2nd fraction, since 72 × 2 = 144,
10/72 = 10 × 2/72 × 2 = 20/144
Subtract the two like fractions:
810/144 - 20/144 = 810 - 20/144 = 790/144
After reducing the fraction, the answer is 395/72
In mixed form: 535/72

MathStep (Works offline)

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