Subtract 10/42 from 48/20, Solve 2 8/20

Subtract 10/42 from 48/20

1^st number: 2 8/20, 2^nd number: 10/42

48/20 - 10/42 is 227/105.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 42 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 20 × 21 = 420,
48/20 = 48 × 21/20 × 21 = 1008/420
Likewise, for the 2nd fraction, since 42 × 10 = 420,
10/42 = 10 × 10/42 × 10 = 100/420
Subtract the two like fractions:
1008/420 - 100/420 = 1008 - 100/420 = 908/420
After reducing the fraction, the answer is 227/105
In mixed form: 217/105

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