Subtract 50/42 from 50/84
1st number: 50/84, 2nd number: 1 8/42
50/84 - 50/42 is -25/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
50/84 = 50 × 1/84 × 1 = 50/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
50/42 = 50 × 2/42 × 2 = 100/84 - Subtract the two like fractions:
50/84 - 100/84 = 50 - 100/84 = -50/84 - After reducing the fraction, the answer is -25/42
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