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Subtract 40/7 from 40/45

1st number: 40/45, 2nd number: 5 5/7

40/45 - 40/7 is -304/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 7 is 315
  2. For the 1st fraction, since 45 × 7 = 315,
    40/45 = 40 × 7/45 × 7 = 280/315
  3. Likewise, for the 2nd fraction, since 7 × 45 = 315,
    40/7 = 40 × 45/7 × 45 = 1800/315
  4. Subtract the two fractions:
    280/315 - 1800/315 = 280 - 1800/315 = -1520/315
  5. After reducing the fraction, the answer is -304/63

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