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Add 30/4 and 30/84

1st number: 7 2/4, 2nd number: 30/84

30/4 + 30/84 is 55/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 84 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 4 × 21 = 84,
    30/4 = 30 × 21/4 × 21 = 630/84
  3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
    30/84 = 30 × 1/84 × 1 = 30/84
  4. Add the two like fractions:
    630/84 + 30/84 = 630 + 30/84 = 660/84
  5. 660/84 simplified gives 55/7
  6. So, 30/4 + 30/84 = 55/7
    In mixed form: 76/7

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