Subtract 10/90 from 40/50
40/50 - 10/90 is 31/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
40/50 = 40 × 9/50 × 9 = 360/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
10/90 = 10 × 5/90 × 5 = 50/450 - Subtract the two like fractions:
360/450 - 50/450 = 360 - 50/450 = 310/450 - After reducing the fraction, the answer is 31/45
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