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Add 12/70 and 6/21

12/70 + 6/21 is 16/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 21 is 210
  2. For the 1st fraction, since 70 × 3 = 210,
    12/70 = 12 × 3/70 × 3 = 36/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    6/21 = 6 × 10/21 × 10 = 60/210
  4. Add the two fractions:
    36/210 + 60/210 = 36 + 60/210 = 96/210
  5. After reducing the fraction, the answer is 16/35

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