Subtract 9/36 from 45/12, Solve 3 9/12

Subtract 9/36 from 45/12

1^st number: 3 9/12, 2^nd number: 9/36

45/12 - 9/36 is 7/2.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 36 is 36

Next, find the equivalent fraction of both fractional numbers with denominator 36
For the 1st fraction, since 12 × 3 = 36,
45/12 = 45 × 3/12 × 3 = 135/36
Likewise, for the 2nd fraction, since 36 × 1 = 36,
9/36 = 9 × 1/36 × 1 = 9/36
Subtract the two like fractions:
135/36 - 9/36 = 135 - 9/36 = 126/36
After reducing the fraction, the answer is 7/2
In mixed form: 31/2

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