Subtract 81/12 from 20/50
1st number: 20/50, 2nd number: 6 9/12
20/50 - 81/12 is -127/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 50 × 6 = 300,
20/50 = 20 × 6/50 × 6 = 120/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
81/12 = 81 × 25/12 × 25 = 2025/300 - Subtract the two like fractions:
120/300 - 2025/300 = 120 - 2025/300 = -1905/300 - After reducing the fraction, the answer is -127/20
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