Subtract 90/18 from 40/25
1st number: 1 15/25, 2nd number: 5 0/18
40/25 - 90/18 is -17/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
40/25 = 40 × 18/25 × 18 = 720/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
90/18 = 90 × 25/18 × 25 = 2250/450 - Subtract the two like fractions:
720/450 - 2250/450 = 720 - 2250/450 = -1530/450 - After reducing the fraction, the answer is -17/5
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