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Add 9/42 and 32/40

9/42 + 32/40 is 71/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 40 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 42 × 20 = 840,
    9/42 = 9 × 20/42 × 20 = 180/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    32/40 = 32 × 21/40 × 21 = 672/840
  4. Add the two like fractions:
    180/840 + 672/840 = 180 + 672/840 = 852/840
  5. 852/840 simplified gives 71/70
  6. So, 9/42 + 32/40 = 71/70
    In mixed form: 11/70

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