Subtract 21/5 from 72/12, Solve 6 0/12

Subtract 21/5 from 72/12

1^st number: 6 0/12, 2^nd number: 4 1/5

72/12 - 21/5 is 9/5.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 5 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 12 × 5 = 60,
72/12 = 72 × 5/12 × 5 = 360/60
Likewise, for the 2nd fraction, since 5 × 12 = 60,
21/5 = 21 × 12/5 × 12 = 252/60
Subtract the two like fractions:
360/60 - 252/60 = 360 - 252/60 = 108/60
After reducing the fraction, the answer is 9/5
In mixed form: 14/5

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