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Add 3/21 and 1/10

3/21 + 1/10 is 17/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 10 is 210
  2. For the 1st fraction, since 21 × 10 = 210,
    3/21 = 3 × 10/21 × 10 = 30/210
  3. Likewise, for the 2nd fraction, since 10 × 21 = 210,
    1/10 = 1 × 21/10 × 21 = 21/210
  4. Add the two fractions:
    30/210 + 21/210 = 30 + 21/210 = 51/210
  5. After reducing the fraction, the answer is 17/70

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