Subtract 90/28 from 54/4
1st number: 13 2/4, 2nd number: 3 6/28
54/4 - 90/28 is 72/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
54/4 = 54 × 7/4 × 7 = 378/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
90/28 = 90 × 1/28 × 1 = 90/28 - Subtract the two like fractions:
378/28 - 90/28 = 378 - 90/28 = 288/28 - After reducing the fraction, the answer is 72/7
- In mixed form: 102/7
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