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Subtract 30/80 from 84/8

1st number: 10 4/8, 2nd number: 30/80

84/8 - 30/80 is 81/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 8 × 10 = 80,
    84/8 = 84 × 10/8 × 10 = 840/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    30/80 = 30 × 1/80 × 1 = 30/80
  4. Subtract the two like fractions:
    840/80 - 30/80 = 840 - 30/80 = 810/80
  5. After reducing the fraction, the answer is 81/8
  6. In mixed form: 101/8

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