Subtract 49/50 from 12/81
12/81 - 49/50 is -1123/1350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 50 is 4050
Next, find the equivalent fraction of both fractional numbers with denominator 4050 - For the 1st fraction, since 81 × 50 = 4050,
12/81 = 12 × 50/81 × 50 = 600/4050 - Likewise, for the 2nd fraction, since 50 × 81 = 4050,
49/50 = 49 × 81/50 × 81 = 3969/4050 - Subtract the two like fractions:
600/4050 - 3969/4050 = 600 - 3969/4050 = -3369/4050 - After reducing the fraction, the answer is -1123/1350
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