Subtract 20/50 from 4/84
4/84 - 20/50 is -37/105.
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,
4/84 = 4 × 25/84 × 25 = 100/2100 - Likewise, for the 2nd fraction, since 50 × 42 = 2100,
20/50 = 20 × 42/50 × 42 = 840/2100 - Subtract the two like fractions:
100/2100 - 840/2100 = 100 - 840/2100 = -740/2100 - After reducing the fraction, the answer is -37/105
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