Subtract 42/50 from 3/12, Solve 3/12

Subtract 42/50 from 3/12

3/12 - 42/50 is -59/100.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 50 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 12 × 25 = 300,
3/12 = 3 × 25/12 × 25 = 75/300
Likewise, for the 2nd fraction, since 50 × 6 = 300,
42/50 = 42 × 6/50 × 6 = 252/300
Subtract the two like fractions:
75/300 - 252/300 = 75 - 252/300 = -177/300
After reducing the fraction, the answer is -59/100

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