Subtract 63/3 from 20/84
1st number: 20/84, 2nd number: 21 0/3
20/84 - 63/3 is -436/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 3 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
20/84 = 20 × 1/84 × 1 = 20/84 - Likewise, for the 2nd fraction, since 3 × 28 = 84,
63/3 = 63 × 28/3 × 28 = 1764/84 - Subtract the two like fractions:
20/84 - 1764/84 = 20 - 1764/84 = -1744/84 - After reducing the fraction, the answer is -436/21
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