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Subtract 45/7 from 9/12

1st number: 9/12, 2nd number: 6 3/7

9/12 - 45/7 is -159/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 7 is 84
  2. For the 1st fraction, since 12 × 7 = 84,
    9/12 = 9 × 7/12 × 7 = 63/84
  3. Likewise, for the 2nd fraction, since 7 × 12 = 84,
    45/7 = 45 × 12/7 × 12 = 540/84
  4. Subtract the two fractions:
    63/84 - 540/84 = 63 - 540/84 = -477/84
  5. After reducing the fraction, the answer is -159/28

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