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Subtract 9/10 from 28/8

1st number: 3 4/8, 2nd number: 9/10

28/8 - 9/10 is 13/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 10 is 40
  2. For the 1st fraction, since 8 × 5 = 40,
    28/8 = 28 × 5/8 × 5 = 140/40
  3. Likewise, for the 2nd fraction, since 10 × 4 = 40,
    9/10 = 9 × 4/10 × 4 = 36/40
  4. Subtract the two fractions:
    140/40 - 36/40 = 140 - 36/40 = 104/40
  5. After reducing the fraction, the answer is 13/5
  6. In mixed form: 23/5

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