Subtract 45/25 from 9/40, Solve 9/40

Subtract 45/25 from 9/40

1^st number: 9/40, 2^nd number: 1 20/25

9/40 - 45/25 is -63/40.

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

Next, find the equivalent fraction of both fractional numbers with denominator 200
For the 1st fraction, since 40 × 5 = 200,
9/40 = 9 × 5/40 × 5 = 45/200
Likewise, for the 2nd fraction, since 25 × 8 = 200,
45/25 = 45 × 8/25 × 8 = 360/200
Subtract the two like fractions:
45/200 - 360/200 = 45 - 360/200 = -315/200
After reducing the fraction, the answer is -63/40

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