Subtract 20/10 from 5/27, Solve 5/27

Subtract 20/10 from 5/27

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

5/27 - 20/10 is -49/27.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 10 is 270

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 27 × 10 = 270,
5/27 = 5 × 10/27 × 10 = 50/270
Likewise, for the 2nd fraction, since 10 × 27 = 270,
20/10 = 20 × 27/10 × 27 = 540/270
Subtract the two like fractions:
50/270 - 540/270 = 50 - 540/270 = -490/270
After reducing the fraction, the answer is -49/27

MathStep (Works offline)

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