Subtract 98/20 from 28/75, Solve 28/75

Subtract 98/20 from 28/75

1^st number: 28/75, 2^nd number: 4 18/20

28/75 - 98/20 is -679/150.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 20 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 75 × 4 = 300,
28/75 = 28 × 4/75 × 4 = 112/300
Likewise, for the 2nd fraction, since 20 × 15 = 300,
98/20 = 98 × 15/20 × 15 = 1470/300
Subtract the two like fractions:
112/300 - 1470/300 = 112 - 1470/300 = -1358/300
After reducing the fraction, the answer is -679/150

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