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Subtract 4/10 from 1/45

1/45 - 4/10 is -17/45.

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,
    1/45 = 1 × 2/45 × 2 = 2/90
  3. Likewise, for the 2nd fraction, since 10 × 9 = 90,
    4/10 = 4 × 9/10 × 9 = 36/90
  4. Subtract the two fractions:
    2/90 - 36/90 = 2 - 36/90 = -34/90
  5. After reducing the fraction, the answer is -17/45

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