Subtract 4/7 from 90/54
1st number: 1 36/54, 2nd number: 4/7
90/54 - 4/7 is 23/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 7 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
90/54 = 90 × 7/54 × 7 = 630/378 - Likewise, for the 2nd fraction, since 7 × 54 = 378,
4/7 = 4 × 54/7 × 54 = 216/378 - Subtract the two like fractions:
630/378 - 216/378 = 630 - 216/378 = 414/378 - After reducing the fraction, the answer is 23/21
- In mixed form: 12/21
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