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Subtract 9/10 from 20/8

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

20/8 - 9/10 is 8/5.

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,
    20/8 = 20 × 5/8 × 5 = 100/40
  3. Likewise, for the 2nd fraction, since 10 × 4 = 40,
    9/10 = 9 × 4/10 × 4 = 36/40
  4. Subtract the two fractions:
    100/40 - 36/40 = 100 - 36/40 = 64/40
  5. After reducing the fraction, the answer is 8/5
  6. In mixed form: 13/5

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