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Add 6/42 and 15/45

6/42 + 15/45 is 10/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 45 is 630
  2. For the 1st fraction, since 42 × 15 = 630,
    6/42 = 6 × 15/42 × 15 = 90/630
  3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
    15/45 = 15 × 14/45 × 14 = 210/630
  4. Add the two fractions:
    90/630 + 210/630 = 90 + 210/630 = 300/630
  5. After reducing the fraction, the answer is 10/21

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