Subtract 3/60 from 27/2, Solve 13 1/2

Subtract 3/60 from 27/2

1^st number: 13 1/2, 2^nd number: 3/60

27/2 - 3/60 is 269/20.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 60 is 60

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 2 × 30 = 60,
27/2 = 27 × 30/2 × 30 = 810/60
Likewise, for the 2nd fraction, since 60 × 1 = 60,
3/60 = 3 × 1/60 × 1 = 3/60
Subtract the two like fractions:
810/60 - 3/60 = 810 - 3/60 = 807/60
After reducing the fraction, the answer is 269/20
In mixed form: 139/20

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