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Add 21/42 and 9/7

1st number: 21/42, 2nd number: 1 2/7

21/42 + 9/7 is 25/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 7 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 42 × 1 = 42,
    21/42 = 21 × 1/42 × 1 = 21/42
  3. Likewise, for the 2nd fraction, since 7 × 6 = 42,
    9/7 = 9 × 6/7 × 6 = 54/42
  4. Add the two like fractions:
    21/42 + 54/42 = 21 + 54/42 = 75/42
  5. 75/42 simplified gives 25/14
  6. So, 21/42 + 9/7 = 25/14
    In mixed form: 111/14

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