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Subtract 30/72 from 30/45

30/45 - 30/72 is 1/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 72 is 360
  2. For the 1st fraction, since 45 × 8 = 360,
    30/45 = 30 × 8/45 × 8 = 240/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    30/72 = 30 × 5/72 × 5 = 150/360
  4. Subtract the two fractions:
    240/360 - 150/360 = 240 - 150/360 = 90/360
  5. After reducing the fraction, the answer is 1/4

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