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Add 3/10 and 12/63

3/10 + 12/63 is 103/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 63 is 630
  2. For the 1st fraction, since 10 × 63 = 630,
    3/10 = 3 × 63/10 × 63 = 189/630
  3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
    12/63 = 12 × 10/63 × 10 = 120/630
  4. Add the two fractions:
    189/630 + 120/630 = 189 + 120/630 = 309/630
  5. After reducing the fraction, the answer is 103/210

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