Subtract 10/8 from 63/20, Solve 3 3/20

Subtract 10/8 from 63/20

1^st number: 3 3/20, 2^nd number: 1 2/8

63/20 - 10/8 is 19/10.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 8 is 40

Next, find the equivalent fraction of both fractional numbers with denominator 40
For the 1st fraction, since 20 × 2 = 40,
63/20 = 63 × 2/20 × 2 = 126/40
Likewise, for the 2nd fraction, since 8 × 5 = 40,
10/8 = 10 × 5/8 × 5 = 50/40
Subtract the two like fractions:
126/40 - 50/40 = 126 - 50/40 = 76/40
After reducing the fraction, the answer is 19/10
In mixed form: 19/10

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