Subtract 45/42 from 80/15, Solve 5 5/15

Subtract 45/42 from 80/15

1^st number: 5 5/15, 2^nd number: 1 3/42

80/15 - 45/42 is 179/42.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 15 × 14 = 210,
80/15 = 80 × 14/15 × 14 = 1120/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
45/42 = 45 × 5/42 × 5 = 225/210
Subtract the two like fractions:
1120/210 - 225/210 = 1120 - 225/210 = 895/210
After reducing the fraction, the answer is 179/42
In mixed form: 411/42

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