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Add 6/21 and 9/8

1st number: 6/21, 2nd number: 1 1/8

6/21 + 9/8 is 79/56.

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,
    6/21 = 6 × 8/21 × 8 = 48/168
  3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
    9/8 = 9 × 21/8 × 21 = 189/168
  4. Add the two fractions:
    48/168 + 189/168 = 48 + 189/168 = 237/168
  5. 237/168 simplified gives 79/56
  6. So, 6/21 + 9/8 = 79/56
    In mixed form: 123/56

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