Subtract 12/7 from 54/18, Solve 3 0/18

Subtract 12/7 from 54/18

1^st number: 3 0/18, 2^nd number: 1 5/7

54/18 - 12/7 is 9/7.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 7 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
54/18 = 54 × 7/18 × 7 = 378/126
Likewise, for the 2nd fraction, since 7 × 18 = 126,
12/7 = 12 × 18/7 × 18 = 216/126
Subtract the two like fractions:
378/126 - 216/126 = 378 - 216/126 = 162/126
After reducing the fraction, the answer is 9/7
In mixed form: 12/7

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