Subtract 20/27 from 3/84
3/84 - 20/27 is -533/756.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 27 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
3/84 = 3 × 9/84 × 9 = 27/756 - Likewise, for the 2nd fraction, since 27 × 28 = 756,
20/27 = 20 × 28/27 × 28 = 560/756 - Subtract the two like fractions:
27/756 - 560/756 = 27 - 560/756 = -533/756
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