Subtract 84/45 from 56/42, Solve 1 14/42

Subtract 84/45 from 56/42

1^st number: 1 14/42, 2^nd number: 1 39/45

56/42 - 84/45 is -8/15.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 42 × 15 = 630,
56/42 = 56 × 15/42 × 15 = 840/630
Likewise, for the 2nd fraction, since 45 × 14 = 630,
84/45 = 84 × 14/45 × 14 = 1176/630
Subtract the two like fractions:
840/630 - 1176/630 = 840 - 1176/630 = -336/630
After reducing the fraction, the answer is -8/15

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