Subtract 48/50 from 81/90
81/90 - 48/50 is -3/50.
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,
81/90 = 81 × 5/90 × 5 = 405/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
48/50 = 48 × 9/50 × 9 = 432/450 - Subtract the two like fractions:
405/450 - 432/450 = 405 - 432/450 = -27/450 - After reducing the fraction, the answer is -3/50
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