Subtract 80/21 from 50/84
1st number: 50/84, 2nd number: 3 17/21
50/84 - 80/21 is -45/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
50/84 = 50 × 1/84 × 1 = 50/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
80/21 = 80 × 4/21 × 4 = 320/84 - Subtract the two like fractions:
50/84 - 320/84 = 50 - 320/84 = -270/84 - After reducing the fraction, the answer is -45/14
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