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Add 1/45 and 18/42

1/45 + 18/42 is 142/315.

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,
    1/45 = 1 × 14/45 × 14 = 14/630
  3. Likewise, for the 2nd fraction, since 42 × 15 = 630,
    18/42 = 18 × 15/42 × 15 = 270/630
  4. Add the two like fractions:
    14/630 + 270/630 = 14 + 270/630 = 284/630
  5. 284/630 simplified gives 142/315
  6. So, 1/45 + 18/42 = 142/315

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