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Add 15/45 and 3/42

15/45 + 3/42 is 17/42.

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,
    15/45 = 15 × 14/45 × 14 = 210/630
  3. Likewise, for the 2nd fraction, since 42 × 15 = 630,
    3/42 = 3 × 15/42 × 15 = 45/630
  4. Add the two like fractions:
    210/630 + 45/630 = 210 + 45/630 = 255/630
  5. 255/630 simplified gives 17/42
  6. So, 15/45 + 3/42 = 17/42

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