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Add 84/10 and 15/42

1st number: 8 4/10, 2nd number: 15/42

84/10 + 15/42 is 613/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 42 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 10 × 21 = 210,
    84/10 = 84 × 21/10 × 21 = 1764/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    15/42 = 15 × 5/42 × 5 = 75/210
  4. Add the two like fractions:
    1764/210 + 75/210 = 1764 + 75/210 = 1839/210
  5. 1839/210 simplified gives 613/70
  6. So, 84/10 + 15/42 = 613/70
    In mixed form: 853/70

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