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Subtract 45/24 from 70/72

1st number: 70/72, 2nd number: 1 21/24

70/72 - 45/24 is -65/72.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 24 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 72 × 1 = 72,
    70/72 = 70 × 1/72 × 1 = 70/72
  3. Likewise, for the 2nd fraction, since 24 × 3 = 72,
    45/24 = 45 × 3/24 × 3 = 135/72
  4. Subtract the two like fractions:
    70/72 - 135/72 = 70 - 135/72 = -65/72

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