Subtract 90/36 from 4/25, Solve 4/25

Subtract 90/36 from 4/25

1^st number: 4/25, 2^nd number: 2 18/36

4/25 - 90/36 is -117/50.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 36 is 900

Next, find the equivalent fraction of both fractional numbers with denominator 900
For the 1st fraction, since 25 × 36 = 900,
4/25 = 4 × 36/25 × 36 = 144/900
Likewise, for the 2nd fraction, since 36 × 25 = 900,
90/36 = 90 × 25/36 × 25 = 2250/900
Subtract the two like fractions:
144/900 - 2250/900 = 144 - 2250/900 = -2106/900
After reducing the fraction, the answer is -117/50

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