Subtract 45/14 from 72/15, Solve 4 12/15

Subtract 45/14 from 72/15

1^st number: 4 12/15, 2^nd number: 3 3/14

72/15 - 45/14 is 111/70.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 14 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 15 × 14 = 210,
72/15 = 72 × 14/15 × 14 = 1008/210
Likewise, for the 2nd fraction, since 14 × 15 = 210,
45/14 = 45 × 15/14 × 15 = 675/210
Subtract the two like fractions:
1008/210 - 675/210 = 1008 - 675/210 = 333/210
After reducing the fraction, the answer is 111/70
In mixed form: 141/70

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