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Add 42/21 and 16/30

1st number: 2 0/21, 2nd number: 16/30

42/21 + 16/30 is 38/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 30 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 21 × 10 = 210,
    42/21 = 42 × 10/21 × 10 = 420/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    16/30 = 16 × 7/30 × 7 = 112/210
  4. Add the two like fractions:
    420/210 + 112/210 = 420 + 112/210 = 532/210
  5. 532/210 simplified gives 38/15
  6. So, 42/21 + 16/30 = 38/15
    In mixed form: 28/15

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