Subtract 24/10 from 21/36, Solve 21/36

Subtract 24/10 from 21/36

1^st number: 21/36, 2^nd number: 2 4/10

21/36 - 24/10 is -109/60.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 10 is 180

Next, find the equivalent fraction of both fractional numbers with denominator 180
For the 1st fraction, since 36 × 5 = 180,
21/36 = 21 × 5/36 × 5 = 105/180
Likewise, for the 2nd fraction, since 10 × 18 = 180,
24/10 = 24 × 18/10 × 18 = 432/180
Subtract the two like fractions:
105/180 - 432/180 = 105 - 432/180 = -327/180
After reducing the fraction, the answer is -109/60

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