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Subtract 15/84 from 20/8

1st number: 2 4/8, 2nd number: 15/84

20/8 - 15/84 is 65/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 84 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 8 × 21 = 168,
    20/8 = 20 × 21/8 × 21 = 420/168
  3. Likewise, for the 2nd fraction, since 84 × 2 = 168,
    15/84 = 15 × 2/84 × 2 = 30/168
  4. Subtract the two like fractions:
    420/168 - 30/168 = 420 - 30/168 = 390/168
  5. After reducing the fraction, the answer is 65/28
  6. In mixed form: 29/28

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