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Subtract 36/72 from 3/30

3/30 - 36/72 is -2/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 72 is 360
  2. For the 1st fraction, since 30 × 12 = 360,
    3/30 = 3 × 12/30 × 12 = 36/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    36/72 = 36 × 5/72 × 5 = 180/360
  4. Subtract the two fractions:
    36/360 - 180/360 = 36 - 180/360 = -144/360
  5. After reducing the fraction, the answer is -2/5

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