Subtract 20/84 from 12/3
1st number: 4 0/3, 2nd number: 20/84
12/3 - 20/84 is 79/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 3 × 28 = 84,
12/3 = 12 × 28/3 × 28 = 336/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
20/84 = 20 × 1/84 × 1 = 20/84 - Subtract the two like fractions:
336/84 - 20/84 = 336 - 20/84 = 316/84 - After reducing the fraction, the answer is 79/21
- In mixed form: 316/21
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