Subtract 70/45 from 14/42, Solve 14/42

Subtract 70/45 from 14/42

1^st number: 14/42, 2^nd number: 1 25/45

14/42 - 70/45 is -11/9.

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,
14/42 = 14 × 15/42 × 15 = 210/630
Likewise, for the 2nd fraction, since 45 × 14 = 630,
70/45 = 70 × 14/45 × 14 = 980/630
Subtract the two like fractions:
210/630 - 980/630 = 210 - 980/630 = -770/630
After reducing the fraction, the answer is -11/9

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