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Add 8/10 and 18/21

8/10 + 18/21 is 58/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 21 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 10 × 21 = 210,
    8/10 = 8 × 21/10 × 21 = 168/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    18/21 = 18 × 10/21 × 10 = 180/210
  4. Add the two like fractions:
    168/210 + 180/210 = 168 + 180/210 = 348/210
  5. 348/210 simplified gives 58/35
  6. So, 8/10 + 18/21 = 58/35
    In mixed form: 123/35

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