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Add 15/8 and 42/84

1st number: 1 7/8, 2nd number: 42/84

15/8 + 42/84 is 19/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 84 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 8 × 21 = 168,
    15/8 = 15 × 21/8 × 21 = 315/168
  3. Likewise, for the 2nd fraction, since 84 × 2 = 168,
    42/84 = 42 × 2/84 × 2 = 84/168
  4. Add the two like fractions:
    315/168 + 84/168 = 315 + 84/168 = 399/168
  5. 399/168 simplified gives 19/8
  6. So, 15/8 + 42/84 = 19/8
    In mixed form: 23/8

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