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Add 7/9 and 42/84

7/9 + 42/84 is 23/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 84 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 9 × 28 = 252,
    7/9 = 7 × 28/9 × 28 = 196/252
  3. Likewise, for the 2nd fraction, since 84 × 3 = 252,
    42/84 = 42 × 3/84 × 3 = 126/252
  4. Add the two like fractions:
    196/252 + 126/252 = 196 + 126/252 = 322/252
  5. 322/252 simplified gives 23/18
  6. So, 7/9 + 42/84 = 23/18
    In mixed form: 15/18

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