Subtract 54/80 from 4/15, Solve 4/15

Subtract 54/80 from 4/15

4/15 - 54/80 is -49/120.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 80 is 240

Next, find the equivalent fraction of both fractional numbers with denominator 240
For the 1st fraction, since 15 × 16 = 240,
4/15 = 4 × 16/15 × 16 = 64/240
Likewise, for the 2nd fraction, since 80 × 3 = 240,
54/80 = 54 × 3/80 × 3 = 162/240
Subtract the two like fractions:
64/240 - 162/240 = 64 - 162/240 = -98/240
After reducing the fraction, the answer is -49/120

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