Subtract 21/50 from 20/84
20/84 - 21/50 is -191/1050.
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,
20/84 = 20 × 25/84 × 25 = 500/2100 - Likewise, for the 2nd fraction, since 50 × 42 = 2100,
21/50 = 21 × 42/50 × 42 = 882/2100 - Subtract the two like fractions:
500/2100 - 882/2100 = 500 - 882/2100 = -382/2100 - After reducing the fraction, the answer is -191/1050
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