Subtract 56/3 from 10/40, Solve 10/40

Subtract 56/3 from 10/40

1^st number: 10/40, 2^nd number: 18 2/3

10/40 - 56/3 is -221/12.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 3 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 40 × 3 = 120,
10/40 = 10 × 3/40 × 3 = 30/120
Likewise, for the 2nd fraction, since 3 × 40 = 120,
56/3 = 56 × 40/3 × 40 = 2240/120
Subtract the two like fractions:
30/120 - 2240/120 = 30 - 2240/120 = -2210/120
After reducing the fraction, the answer is -221/12

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