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

Subtract 2/21 from 8/2

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

8/2 - 2/21 is 82/21.

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,
2/21 = 2 × 2/21 × 2 = 4/42
Subtract the two like fractions:
168/42 - 4/42 = 168 - 4/42 = 164/42
After reducing the fraction, the answer is 82/21
In mixed form: 319/21

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