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Subtract 4/20 from 45/10

1st number: 4 5/10, 2nd number: 4/20

45/10 - 4/20 is 43/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 20 is 20
  2. For the 1st fraction, since 10 × 2 = 20,
    45/10 = 45 × 2/10 × 2 = 90/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    4/20 = 4 × 1/20 × 1 = 4/20
  4. Subtract the two fractions:
    90/20 - 4/20 = 90 - 4/20 = 86/20
  5. After reducing the fraction, the answer is 43/10
  6. In mixed form: 43/10

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