Subtract 81/18 from 20/50
1st number: 20/50, 2nd number: 4 9/18
20/50 - 81/18 is -41/10.
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,
20/50 = 20 × 9/50 × 9 = 180/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
81/18 = 81 × 25/18 × 25 = 2025/450 - Subtract the two like fractions:
180/450 - 2025/450 = 180 - 2025/450 = -1845/450 - After reducing the fraction, the answer is -41/10
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