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Subtract 7/45 from 9/40

9/40 - 7/45 is 5/72.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 45 is 360
  2. For the 1st fraction, since 40 × 9 = 360,
    9/40 = 9 × 9/40 × 9 = 81/360
  3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
    7/45 = 7 × 8/45 × 8 = 56/360
  4. Subtract the two fractions:
    81/360 - 56/360 = 81 - 56/360 = 25/360
  5. After reducing the fraction, the answer is 5/72

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