Subtract 20/10 from 2/27, Solve 2/27

Subtract 20/10 from 2/27

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

2/27 - 20/10 is -52/27.

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,
2/27 = 2 × 10/27 × 10 = 20/270
Likewise, for the 2nd fraction, since 10 × 27 = 270,
20/10 = 20 × 27/10 × 27 = 540/270
Subtract the two like fractions:
20/270 - 540/270 = 20 - 540/270 = -520/270
After reducing the fraction, the answer is -52/27

MathStep (Works offline)

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