Subtract 10/50 from 21/36, Solve 21/36

Subtract 10/50 from 21/36

21/36 - 10/50 is 23/60.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 50 is 900

Next, find the equivalent fraction of both fractional numbers with denominator 900
For the 1st fraction, since 36 × 25 = 900,
21/36 = 21 × 25/36 × 25 = 525/900
Likewise, for the 2nd fraction, since 50 × 18 = 900,
10/50 = 10 × 18/50 × 18 = 180/900
Subtract the two like fractions:
525/900 - 180/900 = 525 - 180/900 = 345/900
After reducing the fraction, the answer is 23/60

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