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Subtract 45/15 from 90/8

1st number: 11 2/8, 2nd number: 3 0/15

90/8 - 45/15 is 33/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 15 is 120
  2. For the 1st fraction, since 8 × 15 = 120,
    90/8 = 90 × 15/8 × 15 = 1350/120
  3. Likewise, for the 2nd fraction, since 15 × 8 = 120,
    45/15 = 45 × 8/15 × 8 = 360/120
  4. Subtract the two fractions:
    1350/120 - 360/120 = 1350 - 360/120 = 990/120
  5. After reducing the fraction, the answer is 33/4
  6. In mixed form: 81/4

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