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Subtract 40/21 from 70/24

1st number: 2 22/24, 2nd number: 1 19/21

70/24 - 40/21 is 85/84.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 24 and 21 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 24 × 7 = 168,
    70/24 = 70 × 7/24 × 7 = 490/168
  3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
    40/21 = 40 × 8/21 × 8 = 320/168
  4. Subtract the two like fractions:
    490/168 - 320/168 = 490 - 320/168 = 170/168
  5. After reducing the fraction, the answer is 85/84
  6. In mixed form: 11/84

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