Subtract 6/40 from 15/5, Solve 3 0/5

Subtract 6/40 from 15/5

1^st number: 3 0/5, 2^nd number: 6/40

15/5 - 6/40 is 57/20.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40

Next, find the equivalent fraction of both fractional numbers with denominator 40
For the 1st fraction, since 5 × 8 = 40,
15/5 = 15 × 8/5 × 8 = 120/40
Likewise, for the 2nd fraction, since 40 × 1 = 40,
6/40 = 6 × 1/40 × 1 = 6/40
Subtract the two like fractions:
120/40 - 6/40 = 120 - 6/40 = 114/40
After reducing the fraction, the answer is 57/20
In mixed form: 217/20

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