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Subtract 70/90 from 4/75

4/75 - 70/90 is -163/225.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 90 is 450
  2. For the 1st fraction, since 75 × 6 = 450,
    4/75 = 4 × 6/75 × 6 = 24/450
  3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
    70/90 = 70 × 5/90 × 5 = 350/450
  4. Subtract the two fractions:
    24/450 - 350/450 = 24 - 350/450 = -326/450
  5. After reducing the fraction, the answer is -163/225

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