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Add 12/30 and 21/35

12/30 + 21/35 is 1/1.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 35 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 30 × 7 = 210,
    12/30 = 12 × 7/30 × 7 = 84/210
  3. Likewise, for the 2nd fraction, since 35 × 6 = 210,
    21/35 = 21 × 6/35 × 6 = 126/210
  4. Add the two like fractions:
    84/210 + 126/210 = 84 + 126/210 = 210/210
  5. 210/210 simplified gives 1/1
  6. So, 12/30 + 21/35 = 1/1

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