Subtract 80/90 from 36/56
36/56 - 80/90 is -31/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 90 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
36/56 = 36 × 45/56 × 45 = 1620/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
80/90 = 80 × 28/90 × 28 = 2240/2520 - Subtract the two like fractions:
1620/2520 - 2240/2520 = 1620 - 2240/2520 = -620/2520 - After reducing the fraction, the answer is -31/126
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Related: 72/56-80/90