Subtract 50/40 from 20/84
1st number: 20/84, 2nd number: 1 10/40
20/84 - 50/40 is -85/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 84 × 10 = 840,
20/84 = 20 × 10/84 × 10 = 200/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
50/40 = 50 × 21/40 × 21 = 1050/840 - Subtract the two like fractions:
200/840 - 1050/840 = 200 - 1050/840 = -850/840 - After reducing the fraction, the answer is -85/84
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