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Add 42/84 and 3/36

42/84 + 3/36 is 7/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 36 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 84 × 3 = 252,
    42/84 = 42 × 3/84 × 3 = 126/252
  3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
    3/36 = 3 × 7/36 × 7 = 21/252
  4. Add the two like fractions:
    126/252 + 21/252 = 126 + 21/252 = 147/252
  5. 147/252 simplified gives 7/12
  6. So, 42/84 + 3/36 = 7/12

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