Subtract 63/40 from 15/6, Solve 2 3/6

Subtract 63/40 from 15/6

1^st number: 2 3/6, 2^nd number: 1 23/40

15/6 - 63/40 is 37/40.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 6 × 20 = 120,
15/6 = 15 × 20/6 × 20 = 300/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
63/40 = 63 × 3/40 × 3 = 189/120
Subtract the two like fractions:
300/120 - 189/120 = 300 - 189/120 = 111/120
After reducing the fraction, the answer is 37/40

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