Subtract 42/50 from 9/36, Solve 9/36

Subtract 42/50 from 9/36

9/36 - 42/50 is -59/100.

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,
9/36 = 9 × 25/36 × 25 = 225/900
Likewise, for the 2nd fraction, since 50 × 18 = 900,
42/50 = 42 × 18/50 × 18 = 756/900
Subtract the two like fractions:
225/900 - 756/900 = 225 - 756/900 = -531/900
After reducing the fraction, the answer is -59/100

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