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Subtract 45/40 from 90/60

1st number: 1 30/60, 2nd number: 1 5/40

90/60 - 45/40 is 3/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 40 is 120
  2. For the 1st fraction, since 60 × 2 = 120,
    90/60 = 90 × 2/60 × 2 = 180/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    45/40 = 45 × 3/40 × 3 = 135/120
  4. Subtract the two fractions:
    180/120 - 135/120 = 180 - 135/120 = 45/120
  5. After reducing the fraction, the answer is 3/8

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