Subtract 12/7 from 18/4, Solve 4 2/4

Subtract 12/7 from 18/4

1^st number: 4 2/4, 2^nd number: 1 5/7

18/4 - 12/7 is 39/14.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28

Next, find the equivalent fraction of both fractional numbers with denominator 28
For the 1st fraction, since 4 × 7 = 28,
18/4 = 18 × 7/4 × 7 = 126/28
Likewise, for the 2nd fraction, since 7 × 4 = 28,
12/7 = 12 × 4/7 × 4 = 48/28
Subtract the two like fractions:
126/28 - 48/28 = 126 - 48/28 = 78/28
After reducing the fraction, the answer is 39/14
In mixed form: 211/14

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