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Add 81/8 and 70/21

1st number: 10 1/8, 2nd number: 3 7/21

81/8 + 70/21 is 323/24.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 8 × 21 = 168,
    81/8 = 81 × 21/8 × 21 = 1701/168
  3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
    70/21 = 70 × 8/21 × 8 = 560/168
  4. Add the two like fractions:
    1701/168 + 560/168 = 1701 + 560/168 = 2261/168
  5. 2261/168 simplified gives 323/24
  6. So, 81/8 + 70/21 = 323/24
    In mixed form: 1311/24

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