Subtract 90/42 from 56/75, Solve 56/75

Subtract 90/42 from 56/75

1^st number: 56/75, 2^nd number: 2 6/42

56/75 - 90/42 is -733/525.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 42 is 1050

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 75 × 14 = 1050,
56/75 = 56 × 14/75 × 14 = 784/1050
Likewise, for the 2nd fraction, since 42 × 25 = 1050,
90/42 = 90 × 25/42 × 25 = 2250/1050
Subtract the two like fractions:
784/1050 - 2250/1050 = 784 - 2250/1050 = -1466/1050
After reducing the fraction, the answer is -733/525

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