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Subtract 42/50 from 60/90

60/90 - 42/50 is -13/75.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 50 is 450
  2. For the 1st fraction, since 90 × 5 = 450,
    60/90 = 60 × 5/90 × 5 = 300/450
  3. Likewise, for the 2nd fraction, since 50 × 9 = 450,
    42/50 = 42 × 9/50 × 9 = 378/450
  4. Subtract the two fractions:
    300/450 - 378/450 = 300 - 378/450 = -78/450
  5. After reducing the fraction, the answer is -13/75

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