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Add 3/70 and 4/21

3/70 + 4/21 is 7/30.

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,
    3/70 = 3 × 3/70 × 3 = 9/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    4/21 = 4 × 10/21 × 10 = 40/210
  4. Add the two fractions:
    9/210 + 40/210 = 9 + 40/210 = 49/210
  5. After reducing the fraction, the answer is 7/30

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