Subtract 12/21 from 6/2, Solve 3 0/2

Subtract 12/21 from 6/2

1^st number: 3 0/2, 2^nd number: 12/21

6/2 - 12/21 is 17/7.

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,
6/2 = 6 × 21/2 × 21 = 126/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
12/21 = 12 × 2/21 × 2 = 24/42
Subtract the two like fractions:
126/42 - 24/42 = 126 - 24/42 = 102/42
After reducing the fraction, the answer is 17/7
In mixed form: 23/7

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