Subtract 45/40 from 6/12, Solve 6/12

Subtract 45/40 from 6/12

1^st number: 6/12, 2^nd number: 1 5/40

6/12 - 45/40 is -5/8.

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,
6/12 = 6 × 10/12 × 10 = 60/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
45/40 = 45 × 3/40 × 3 = 135/120
Subtract the two like fractions:
60/120 - 135/120 = 60 - 135/120 = -75/120
After reducing the fraction, the answer is -5/8

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