Subtract 21/27 from 50/5, Solve 10 0/5

Subtract 21/27 from 50/5

1^st number: 10 0/5, 2^nd number: 21/27

50/5 - 21/27 is 83/9.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 27 is 135

Next, find the equivalent fraction of both fractional numbers with denominator 135
For the 1st fraction, since 5 × 27 = 135,
50/5 = 50 × 27/5 × 27 = 1350/135
Likewise, for the 2nd fraction, since 27 × 5 = 135,
21/27 = 21 × 5/27 × 5 = 105/135
Subtract the two like fractions:
1350/135 - 105/135 = 1350 - 105/135 = 1245/135
After reducing the fraction, the answer is 83/9
In mixed form: 92/9

MathStep (Works offline)

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