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Add 10/8 and 8/21

1st number: 1 2/8, 2nd number: 8/21

10/8 + 8/21 is 137/84.

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,
    10/8 = 10 × 21/8 × 21 = 210/168
  3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
    8/21 = 8 × 8/21 × 8 = 64/168
  4. Add the two like fractions:
    210/168 + 64/168 = 210 + 64/168 = 274/168
  5. 274/168 simplified gives 137/84
  6. So, 10/8 + 8/21 = 137/84
    In mixed form: 153/84

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