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Subtract 42/80 from 28/5

1st number: 5 3/5, 2nd number: 42/80

28/5 - 42/80 is 203/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 5 × 16 = 80,
    28/5 = 28 × 16/5 × 16 = 448/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    42/80 = 42 × 1/80 × 1 = 42/80
  4. Subtract the two like fractions:
    448/80 - 42/80 = 448 - 42/80 = 406/80
  5. After reducing the fraction, the answer is 203/40
  6. In mixed form: 53/40

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