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Subtract 3/8 from 9/45

9/45 - 3/8 is -7/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 8 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 45 × 8 = 360,
    9/45 = 9 × 8/45 × 8 = 72/360
  3. Likewise, for the 2nd fraction, since 8 × 45 = 360,
    3/8 = 3 × 45/8 × 45 = 135/360
  4. Subtract the two like fractions:
    72/360 - 135/360 = 72 - 135/360 = -63/360
  5. After reducing the fraction, the answer is -7/40

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