Subtract 54/28 from 42/90
1st number: 42/90, 2nd number: 1 26/28
42/90 - 54/28 is -307/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
42/90 = 42 × 14/90 × 14 = 588/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
54/28 = 54 × 45/28 × 45 = 2430/1260 - Subtract the two like fractions:
588/1260 - 2430/1260 = 588 - 2430/1260 = -1842/1260 - After reducing the fraction, the answer is -307/210
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