Subtract 15/18 from 42/14, Solve 3 0/14

Subtract 15/18 from 42/14

1^st number: 3 0/14, 2^nd number: 15/18

42/14 - 15/18 is 13/6.

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

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 14 × 9 = 126,
42/14 = 42 × 9/14 × 9 = 378/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
15/18 = 15 × 7/18 × 7 = 105/126
Subtract the two like fractions:
378/126 - 105/126 = 378 - 105/126 = 273/126
After reducing the fraction, the answer is 13/6
In mixed form: 21/6

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