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Subtract 80/35 from 30/84

1st number: 30/84, 2nd number: 2 10/35

30/84 - 80/35 is -27/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 35 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 84 × 5 = 420,
    30/84 = 30 × 5/84 × 5 = 150/420
  3. Likewise, for the 2nd fraction, since 35 × 12 = 420,
    80/35 = 80 × 12/35 × 12 = 960/420
  4. Subtract the two like fractions:
    150/420 - 960/420 = 150 - 960/420 = -810/420
  5. After reducing the fraction, the answer is -27/14

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