Subtract 5/21 from 8/2, Solve 4 0/2

Subtract 5/21 from 8/2

1^st number: 4 0/2, 2^nd number: 5/21

8/2 - 5/21 is 79/21.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 2 × 21 = 42,
8/2 = 8 × 21/2 × 21 = 168/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
5/21 = 5 × 2/21 × 2 = 10/42
Subtract the two like fractions:
168/42 - 10/42 = 168 - 10/42 = 158/42
After reducing the fraction, the answer is 79/21
In mixed form: 316/21

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