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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

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 84 is 84
  2. For the 1st fraction, since 3 × 28 = 84,
    15/3 = 15 × 28/3 × 28 = 420/84
  3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
    20/84 = 20 × 1/84 × 1 = 20/84
  4. Subtract the two fractions:
    420/84 - 20/84 = 420 - 20/84 = 400/84
  5. After reducing the fraction, the answer is 100/21
  6. In mixed form: 416/21

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