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Subtract 20/7 from 15/24

1st number: 15/24, 2nd number: 2 6/7

15/24 - 20/7 is -125/56.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 24 and 7 is 168
  2. For the 1st fraction, since 24 × 7 = 168,
    15/24 = 15 × 7/24 × 7 = 105/168
  3. Likewise, for the 2nd fraction, since 7 × 24 = 168,
    20/7 = 20 × 24/7 × 24 = 480/168
  4. Subtract the two fractions:
    105/168 - 480/168 = 105 - 480/168 = -375/168
  5. After reducing the fraction, the answer is -125/56

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