Subtract 54/75 from 1/28, Solve 1/28

Subtract 54/75 from 1/28

1/28 - 54/75 is -479/700.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 75 is 2100

Next, find the equivalent fraction of both fractional numbers with denominator 2100
For the 1st fraction, since 28 × 75 = 2100,
1/28 = 1 × 75/28 × 75 = 75/2100
Likewise, for the 2nd fraction, since 75 × 28 = 2100,
54/75 = 54 × 28/75 × 28 = 1512/2100
Subtract the two like fractions:
75/2100 - 1512/2100 = 75 - 1512/2100 = -1437/2100
After reducing the fraction, the answer is -479/700

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