Subtract 40/50 from 49/90
49/90 - 40/50 is -23/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
49/90 = 49 × 5/90 × 5 = 245/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
40/50 = 40 × 9/50 × 9 = 360/450 - Subtract the two like fractions:
245/450 - 360/450 = 245 - 360/450 = -115/450 - After reducing the fraction, the answer is -23/90
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