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Add 42/21 and 42/9

1st number: 2 0/21, 2nd number: 4 6/9

42/21 + 42/9 is 20/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 9 is 63

    Next, find the equivalent fraction of both fractional numbers with denominator 63
  2. For the 1st fraction, since 21 × 3 = 63,
    42/21 = 42 × 3/21 × 3 = 126/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    42/9 = 42 × 7/9 × 7 = 294/63
  4. Add the two like fractions:
    126/63 + 294/63 = 126 + 294/63 = 420/63
  5. 420/63 simplified gives 20/3
  6. So, 42/21 + 42/9 = 20/3
    In mixed form: 62/3

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