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Subtract 84/45 from 4/10

1st number: 4/10, 2nd number: 1 39/45

4/10 - 84/45 is -22/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 45 is 90
  2. For the 1st fraction, since 10 × 9 = 90,
    4/10 = 4 × 9/10 × 9 = 36/90
  3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
    84/45 = 84 × 2/45 × 2 = 168/90
  4. Subtract the two fractions:
    36/90 - 168/90 = 36 - 168/90 = -132/90
  5. After reducing the fraction, the answer is -22/15

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