Subtract 7/80 from 27/5, Solve 5 2/5

Subtract 7/80 from 27/5

1^st number: 5 2/5, 2^nd number: 7/80

27/5 - 7/80 is 85/16.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 80 is 80

Next, find the equivalent fraction of both fractional numbers with denominator 80
For the 1st fraction, since 5 × 16 = 80,
27/5 = 27 × 16/5 × 16 = 432/80
Likewise, for the 2nd fraction, since 80 × 1 = 80,
7/80 = 7 × 1/80 × 1 = 7/80
Subtract the two like fractions:
432/80 - 7/80 = 432 - 7/80 = 425/80
After reducing the fraction, the answer is 85/16
In mixed form: 55/16

MathStep (Works offline)

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