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Subtract 18/45 from 24/21

1st number: 1 3/21, 2nd number: 18/45

24/21 - 18/45 is 26/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 45 is 315
  2. For the 1st fraction, since 21 × 15 = 315,
    24/21 = 24 × 15/21 × 15 = 360/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    18/45 = 18 × 7/45 × 7 = 126/315
  4. Subtract the two fractions:
    360/315 - 126/315 = 360 - 126/315 = 234/315
  5. After reducing the fraction, the answer is 26/35

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