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Subtract 40/42 from 70/8

1st number: 8 6/8, 2nd number: 40/42

70/8 - 40/42 is 655/84.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 42 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 8 × 21 = 168,
    70/8 = 70 × 21/8 × 21 = 1470/168
  3. Likewise, for the 2nd fraction, since 42 × 4 = 168,
    40/42 = 40 × 4/42 × 4 = 160/168
  4. Subtract the two like fractions:
    1470/168 - 160/168 = 1470 - 160/168 = 1310/168
  5. After reducing the fraction, the answer is 655/84
  6. In mixed form: 767/84

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