Subtract 45/80 from 6/84
6/84 - 45/80 is -55/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 84 × 20 = 1680,
6/84 = 6 × 20/84 × 20 = 120/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
45/80 = 45 × 21/80 × 21 = 945/1680 - Subtract the two like fractions:
120/1680 - 945/1680 = 120 - 945/1680 = -825/1680 - After reducing the fraction, the answer is -55/112
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