Subtract 90/14 from 72/28
1st number: 2 16/28, 2nd number: 6 6/14
72/28 - 90/14 is -27/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 14 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
72/28 = 72 × 1/28 × 1 = 72/28 - Likewise, for the 2nd fraction, since 14 × 2 = 28,
90/14 = 90 × 2/14 × 2 = 180/28 - Subtract the two like fractions:
72/28 - 180/28 = 72 - 180/28 = -108/28 - After reducing the fraction, the answer is -27/7
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