Subtract 5/40 from 70/20, Solve 3 10/20

Subtract 5/40 from 70/20

1^st number: 3 10/20, 2^nd number: 5/40

70/20 - 5/40 is 27/8.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40

Next, find the equivalent fraction of both fractional numbers with denominator 40
For the 1st fraction, since 20 × 2 = 40,
70/20 = 70 × 2/20 × 2 = 140/40
Likewise, for the 2nd fraction, since 40 × 1 = 40,
5/40 = 5 × 1/40 × 1 = 5/40
Subtract the two like fractions:
140/40 - 5/40 = 140 - 5/40 = 135/40
After reducing the fraction, the answer is 27/8
In mixed form: 33/8

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