Subtract 56/18 from 15/75, Solve 15/75

Subtract 56/18 from 15/75

1^st number: 15/75, 2^nd number: 3 2/18

15/75 - 56/18 is -131/45.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 18 is 450

Next, find the equivalent fraction of both fractional numbers with denominator 450
For the 1st fraction, since 75 × 6 = 450,
15/75 = 15 × 6/75 × 6 = 90/450
Likewise, for the 2nd fraction, since 18 × 25 = 450,
56/18 = 56 × 25/18 × 25 = 1400/450
Subtract the two like fractions:
90/450 - 1400/450 = 90 - 1400/450 = -1310/450
After reducing the fraction, the answer is -131/45

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