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Add 2/21 and 12/30

2/21 + 12/30 is 52/105.

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,
    2/21 = 2 × 10/21 × 10 = 20/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    12/30 = 12 × 7/30 × 7 = 84/210
  4. Add the two like fractions:
    20/210 + 84/210 = 20 + 84/210 = 104/210
  5. 104/210 simplified gives 52/105
  6. So, 2/21 + 12/30 = 52/105

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