Subtract 18/40 from 4/25, Solve 4/25

Subtract 18/40 from 4/25

4/25 - 18/40 is -29/100.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 40 is 200

Next, find the equivalent fraction of both fractional numbers with denominator 200
For the 1st fraction, since 25 × 8 = 200,
4/25 = 4 × 8/25 × 8 = 32/200
Likewise, for the 2nd fraction, since 40 × 5 = 200,
18/40 = 18 × 5/40 × 5 = 90/200
Subtract the two like fractions:
32/200 - 90/200 = 32 - 90/200 = -58/200
After reducing the fraction, the answer is -29/100

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