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Add 3/45 and 15/42

3/45 + 15/42 is 89/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 42 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 45 × 14 = 630,
    3/45 = 3 × 14/45 × 14 = 42/630
  3. Likewise, for the 2nd fraction, since 42 × 15 = 630,
    15/42 = 15 × 15/42 × 15 = 225/630
  4. Add the two like fractions:
    42/630 + 225/630 = 42 + 225/630 = 267/630
  5. 267/630 simplified gives 89/210
  6. So, 3/45 + 15/42 = 89/210

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