Subtract 42/12 from 7/75, Solve 7/75

Subtract 42/12 from 7/75

1^st number: 7/75, 2^nd number: 3 6/12

7/75 - 42/12 is -511/150.

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,
7/75 = 7 × 4/75 × 4 = 28/300
Likewise, for the 2nd fraction, since 12 × 25 = 300,
42/12 = 42 × 25/12 × 25 = 1050/300
Subtract the two like fractions:
28/300 - 1050/300 = 28 - 1050/300 = -1022/300
After reducing the fraction, the answer is -511/150

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