Subtract 90/14 from 81/4
1st number: 20 1/4, 2nd number: 6 6/14
81/4 - 90/14 is 387/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 14 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
81/4 = 81 × 7/4 × 7 = 567/28 - Likewise, for the 2nd fraction, since 14 × 2 = 28,
90/14 = 90 × 2/14 × 2 = 180/28 - Subtract the two like fractions:
567/28 - 180/28 = 567 - 180/28 = 387/28 - In mixed form: 1323/28
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