Subtract 40/50 from 16/90
16/90 - 40/50 is -28/45.
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,
16/90 = 16 × 5/90 × 5 = 80/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
40/50 = 40 × 9/50 × 9 = 360/450 - Subtract the two like fractions:
80/450 - 360/450 = 80 - 360/450 = -280/450 - After reducing the fraction, the answer is -28/45
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