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Subtract 14/21 from 70/40

1st number: 1 30/40, 2nd number: 14/21

70/40 - 14/21 is 13/12.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 21 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 40 × 21 = 840,
    70/40 = 70 × 21/40 × 21 = 1470/840
  3. Likewise, for the 2nd fraction, since 21 × 40 = 840,
    14/21 = 14 × 40/21 × 40 = 560/840
  4. Subtract the two like fractions:
    1470/840 - 560/840 = 1470 - 560/840 = 910/840
  5. After reducing the fraction, the answer is 13/12
  6. In mixed form: 11/12

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