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Subtract 2/10 from 4/45

4/45 - 2/10 is -1/9.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 10 is 90
  2. For the 1st fraction, since 45 × 2 = 90,
    4/45 = 4 × 2/45 × 2 = 8/90
  3. Likewise, for the 2nd fraction, since 10 × 9 = 90,
    2/10 = 2 × 9/10 × 9 = 18/90
  4. Subtract the two fractions:
    8/90 - 18/90 = 8 - 18/90 = -10/90
  5. After reducing the fraction, the answer is -1/9

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