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Add 40/70 and 5/12

40/70 + 5/12 is 83/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 12 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 70 × 6 = 420,
    40/70 = 40 × 6/70 × 6 = 240/420
  3. Likewise, for the 2nd fraction, since 12 × 35 = 420,
    5/12 = 5 × 35/12 × 35 = 175/420
  4. Add the two like fractions:
    240/420 + 175/420 = 240 + 175/420 = 415/420
  5. 415/420 simplified gives 83/84
  6. So, 40/70 + 5/12 = 83/84

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