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Add 84/21 and 7/8

1st number: 4 0/21, 2nd number: 7/8

84/21 + 7/8 is 39/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 8 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 21 × 8 = 168,
    84/21 = 84 × 8/21 × 8 = 672/168
  3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
    7/8 = 7 × 21/8 × 21 = 147/168
  4. Add the two like fractions:
    672/168 + 147/168 = 672 + 147/168 = 819/168
  5. 819/168 simplified gives 39/8
  6. So, 84/21 + 7/8 = 39/8
    In mixed form: 47/8

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