Subtract 20/16 from 27/5, Solve 5 2/5

Subtract 20/16 from 27/5

1^st number: 5 2/5, 2^nd number: 1 4/16

27/5 - 20/16 is 83/20.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 16 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 16 × 5 = 80,
20/16 = 20 × 5/16 × 5 = 100/80
Subtract the two like fractions:
432/80 - 100/80 = 432 - 100/80 = 332/80
After reducing the fraction, the answer is 83/20
In mixed form: 43/20

MathStep (Works offline)

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