Subtract 15/12 from 70/75, Solve 70/75

Subtract 15/12 from 70/75

1^st number: 70/75, 2^nd number: 1 3/12

70/75 - 15/12 is -19/60.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 12 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 75 × 4 = 300,
70/75 = 70 × 4/75 × 4 = 280/300
Likewise, for the 2nd fraction, since 12 × 25 = 300,
15/12 = 15 × 25/12 × 25 = 375/300
Subtract the two like fractions:
280/300 - 375/300 = 280 - 375/300 = -95/300
After reducing the fraction, the answer is -19/60

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