Subtract 6/40 from 63/12, Solve 5 3/12

Subtract 6/40 from 63/12

1^st number: 5 3/12, 2^nd number: 6/40

63/12 - 6/40 is 51/10.

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,
63/12 = 63 × 10/12 × 10 = 630/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
6/40 = 6 × 3/40 × 3 = 18/120
Subtract the two like fractions:
630/120 - 18/120 = 630 - 18/120 = 612/120
After reducing the fraction, the answer is 51/10
In mixed form: 51/10

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