Subtract 18/45 from 40/12, Solve 3 4/12

Subtract 18/45 from 40/12

1^st number: 3 4/12, 2^nd number: 18/45

40/12 - 18/45 is 44/15.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 is 180

Next, find the equivalent fraction of both fractional numbers with denominator 180
For the 1st fraction, since 12 × 15 = 180,
40/12 = 40 × 15/12 × 15 = 600/180
Likewise, for the 2nd fraction, since 45 × 4 = 180,
18/45 = 18 × 4/45 × 4 = 72/180
Subtract the two like fractions:
600/180 - 72/180 = 600 - 72/180 = 528/180
After reducing the fraction, the answer is 44/15
In mixed form: 214/15

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