Subtract 42/90 from 90/84
1st number: 1 6/84, 2nd number: 42/90
90/84 - 42/90 is 127/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 84 × 15 = 1260,
90/84 = 90 × 15/84 × 15 = 1350/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
42/90 = 42 × 14/90 × 14 = 588/1260 - Subtract the two like fractions:
1350/1260 - 588/1260 = 1350 - 588/1260 = 762/1260 - After reducing the fraction, the answer is 127/210
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Related: 90/84-84/90