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Subtract 40/35 from 20/45

1st number: 20/45, 2nd number: 1 5/35

20/45 - 40/35 is -44/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 35 is 315
  2. For the 1st fraction, since 45 × 7 = 315,
    20/45 = 20 × 7/45 × 7 = 140/315
  3. Likewise, for the 2nd fraction, since 35 × 9 = 315,
    40/35 = 40 × 9/35 × 9 = 360/315
  4. Subtract the two fractions:
    140/315 - 360/315 = 140 - 360/315 = -220/315
  5. After reducing the fraction, the answer is -44/63

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