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Add 1/42 and 27/90

1/42 + 27/90 is 34/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 42 × 15 = 630,
    1/42 = 1 × 15/42 × 15 = 15/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    27/90 = 27 × 7/90 × 7 = 189/630
  4. Add the two like fractions:
    15/630 + 189/630 = 15 + 189/630 = 204/630
  5. 204/630 simplified gives 34/105
  6. So, 1/42 + 27/90 = 34/105

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