Subtract 20/54 from 7/4
1st number: 1 3/4, 2nd number: 20/54
7/4 - 20/54 is 149/108.
Steps for subtracting fractions
- 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,
20/54 = 20 × 2/54 × 2 = 40/108 - Subtract the two like fractions:
189/108 - 40/108 = 189 - 40/108 = 149/108 - In mixed form: 141/108
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