Subtract 27/7 from 72/4, Solve 18 0/4

Subtract 27/7 from 72/4

1^st number: 18 0/4, 2^nd number: 3 6/7

72/4 - 27/7 is 99/7.

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,
72/4 = 72 × 7/4 × 7 = 504/28
Likewise, for the 2nd fraction, since 7 × 4 = 28,
27/7 = 27 × 4/7 × 4 = 108/28
Subtract the two like fractions:
504/28 - 108/28 = 504 - 108/28 = 396/28
After reducing the fraction, the answer is 99/7
In mixed form: 141/7

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