Subtract 10/40 from 1/12, Solve 1/12

Subtract 10/40 from 1/12

1/12 - 10/40 is -1/6.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 12 × 10 = 120,
1/12 = 1 × 10/12 × 10 = 10/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
10/40 = 10 × 3/40 × 3 = 30/120
Subtract the two like fractions:
10/120 - 30/120 = 10 - 30/120 = -20/120
After reducing the fraction, the answer is -1/6

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