Subtract 28/56 from 2/90
2/90 - 28/56 is -43/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 90 × 28 = 2520,
2/90 = 2 × 28/90 × 28 = 56/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
28/56 = 28 × 45/56 × 45 = 1260/2520 - Subtract the two like fractions:
56/2520 - 1260/2520 = 56 - 1260/2520 = -1204/2520 - After reducing the fraction, the answer is -43/90
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