Subtract 75/54 from 18/7
1st number: 2 4/7, 2nd number: 1 21/54
18/7 - 75/54 is 149/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 7 × 54 = 378,
18/7 = 18 × 54/7 × 54 = 972/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
75/54 = 75 × 7/54 × 7 = 525/378 - Subtract the two like fractions:
972/378 - 525/378 = 972 - 525/378 = 447/378 - After reducing the fraction, the answer is 149/126
- In mixed form: 123/126
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