Subtract 9/60 from 18/12, Solve 1 6/12

Subtract 9/60 from 18/12

1^st number: 1 6/12, 2^nd number: 9/60

18/12 - 9/60 is 27/20.

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

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 12 × 5 = 60,
18/12 = 18 × 5/12 × 5 = 90/60
Likewise, for the 2nd fraction, since 60 × 1 = 60,
9/60 = 9 × 1/60 × 1 = 9/60
Subtract the two like fractions:
90/60 - 9/60 = 90 - 9/60 = 81/60
After reducing the fraction, the answer is 27/20
In mixed form: 17/20

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