Subtract 20/75 from 27/2, Solve 13 1/2

Subtract 20/75 from 27/2

1^st number: 13 1/2, 2^nd number: 20/75

27/2 - 20/75 is 397/30.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 75 is 150

Next, find the equivalent fraction of both fractional numbers with denominator 150
For the 1st fraction, since 2 × 75 = 150,
27/2 = 27 × 75/2 × 75 = 2025/150
Likewise, for the 2nd fraction, since 75 × 2 = 150,
20/75 = 20 × 2/75 × 2 = 40/150
Subtract the two like fractions:
2025/150 - 40/150 = 2025 - 40/150 = 1985/150
After reducing the fraction, the answer is 397/30
In mixed form: 137/30

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