Subtract 40/18 from 90/50
1st number: 1 40/50, 2nd number: 2 4/18
90/50 - 40/18 is -19/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
90/50 = 90 × 9/50 × 9 = 810/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
40/18 = 40 × 25/18 × 25 = 1000/450 - Subtract the two like fractions:
810/450 - 1000/450 = 810 - 1000/450 = -190/450 - After reducing the fraction, the answer is -19/45
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