Subtract 18/40 from 80/25, Solve 3 5/25

Subtract 18/40 from 80/25

1^st number: 3 5/25, 2^nd number: 18/40

80/25 - 18/40 is 11/4.

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,
80/25 = 80 × 8/25 × 8 = 640/200
Likewise, for the 2nd fraction, since 40 × 5 = 200,
18/40 = 18 × 5/40 × 5 = 90/200
Subtract the two like fractions:
640/200 - 90/200 = 640 - 90/200 = 550/200
After reducing the fraction, the answer is 11/4
In mixed form: 23/4

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