Subtract 16/54 from 10/40, Solve 10/40

Subtract 16/54 from 10/40

10/40 - 16/54 is -5/108.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 54 is 1080

Next, find the equivalent fraction of both fractional numbers with denominator 1080
For the 1st fraction, since 40 × 27 = 1080,
10/40 = 10 × 27/40 × 27 = 270/1080
Likewise, for the 2nd fraction, since 54 × 20 = 1080,
16/54 = 16 × 20/54 × 20 = 320/1080
Subtract the two like fractions:
270/1080 - 320/1080 = 270 - 320/1080 = -50/1080
After reducing the fraction, the answer is -5/108

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