Subtract 20/84 from 15/3
1st number: 5 0/3, 2nd number: 20/84
15/3 - 20/84 is 100/21.
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,
15/3 = 15 × 28/3 × 28 = 420/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
20/84 = 20 × 1/84 × 1 = 20/84 - Subtract the two like fractions:
420/84 - 20/84 = 420 - 20/84 = 400/84 - After reducing the fraction, the answer is 100/21
- In mixed form: 416/21
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