Subtract 45/12 from 36/5, Solve 7 1/5

Subtract 45/12 from 36/5

1^st number: 7 1/5, 2^nd number: 3 9/12

36/5 - 45/12 is 69/20.

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

Next, find the equivalent fraction of both fractional numbers with denominator 60
For the 1st fraction, since 5 × 12 = 60,
36/5 = 36 × 12/5 × 12 = 432/60
Likewise, for the 2nd fraction, since 12 × 5 = 60,
45/12 = 45 × 5/12 × 5 = 225/60
Subtract the two like fractions:
432/60 - 225/60 = 432 - 225/60 = 207/60
After reducing the fraction, the answer is 69/20
In mixed form: 39/20

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