Subtract 20/50 from 2/84
2/84 - 20/50 is -79/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 50 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
2/84 = 2 × 25/84 × 25 = 50/2100 - Likewise, for the 2nd fraction, since 50 × 42 = 2100,
20/50 = 20 × 42/50 × 42 = 840/2100 - Subtract the two like fractions:
50/2100 - 840/2100 = 50 - 840/2100 = -790/2100 - After reducing the fraction, the answer is -79/210
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