Subtract 75/54 from 7/4, Solve 1 3/4

Subtract 75/54 from 7/4

1^st number: 1 3/4, 2^nd number: 1 21/54

7/4 - 75/54 is 13/36.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 54 is 108

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 4 × 27 = 108,
7/4 = 7 × 27/4 × 27 = 189/108
Likewise, for the 2nd fraction, since 54 × 2 = 108,
75/54 = 75 × 2/54 × 2 = 150/108
Subtract the two like fractions:
189/108 - 150/108 = 189 - 150/108 = 39/108
After reducing the fraction, the answer is 13/36

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