Subtract 5/10 from 60/21, Solve 2 18/21

Subtract 5/10 from 60/21

1^st number: 2 18/21, 2^nd number: 5/10

60/21 - 5/10 is 33/14.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 10 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 21 × 10 = 210,
60/21 = 60 × 10/21 × 10 = 600/210
Likewise, for the 2nd fraction, since 10 × 21 = 210,
5/10 = 5 × 21/10 × 21 = 105/210
Subtract the two like fractions:
600/210 - 105/210 = 600 - 105/210 = 495/210
After reducing the fraction, the answer is 33/14
In mixed form: 25/14

MathStep (Works offline)

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