Subtract 8/56 from 9/90
9/90 - 8/56 is -3/70.
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,
9/90 = 9 × 28/90 × 28 = 252/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
8/56 = 8 × 45/56 × 45 = 360/2520 - Subtract the two like fractions:
252/2520 - 360/2520 = 252 - 360/2520 = -108/2520 - After reducing the fraction, the answer is -3/70
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