Subtract 70/56 from 3/18, Solve 3/18

Subtract 70/56 from 3/18

1^st number: 3/18, 2^nd number: 1 14/56

3/18 - 70/56 is -13/12.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 56 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 18 × 28 = 504,
3/18 = 3 × 28/18 × 28 = 84/504
Likewise, for the 2nd fraction, since 56 × 9 = 504,
70/56 = 70 × 9/56 × 9 = 630/504
Subtract the two like fractions:
84/504 - 630/504 = 84 - 630/504 = -546/504
After reducing the fraction, the answer is -13/12

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