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Add 2/21 and 18/8

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

2/21 + 18/8 is 197/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 8 is 168
  2. For the 1st fraction, since 21 × 8 = 168,
    2/21 = 2 × 8/21 × 8 = 16/168
  3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
    18/8 = 18 × 21/8 × 21 = 378/168
  4. Add the two fractions:
    16/168 + 378/168 = 16 + 378/168 = 394/168
  5. 394/168 simplified gives 197/84
  6. So, 2/21 + 18/8 = 197/84
    In mixed form: 229/84

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