Subtract 90/32 from 4/5, Solve 4/5 - 2 26/32 as a fraction

Subtract 90/32 from 4/5

1^st number: 4/5, 2^nd number: 2 26/32

4/5 - 90/32 is -161/80.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 32 is 160

Next, find the equivalent fraction of both fractional numbers with denominator 160
For the 1st fraction, since 5 × 32 = 160,
4/5 = 4 × 32/5 × 32 = 128/160
Likewise, for the 2nd fraction, since 32 × 5 = 160,
90/32 = 90 × 5/32 × 5 = 450/160
Subtract the two like fractions:
128/160 - 450/160 = 128 - 450/160 = -322/160
After reducing the fraction, the answer is -161/80

MathStep (Works offline)

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