Subtract 56/14 from 30/18, Solve 1 12/18

Subtract 56/14 from 30/18

1^st number: 1 12/18, 2^nd number: 4 0/14

30/18 - 56/14 is -7/3.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 14 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
30/18 = 30 × 7/18 × 7 = 210/126
Likewise, for the 2nd fraction, since 14 × 9 = 126,
56/14 = 56 × 9/14 × 9 = 504/126
Subtract the two like fractions:
210/126 - 504/126 = 210 - 504/126 = -294/126
After reducing the fraction, the answer is -7/3

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