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Add 27/42 and 6/90

27/42 + 6/90 is 149/210.

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,
    27/42 = 27 × 15/42 × 15 = 405/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    6/90 = 6 × 7/90 × 7 = 42/630
  4. Add the two like fractions:
    405/630 + 42/630 = 405 + 42/630 = 447/630
  5. 447/630 simplified gives 149/210
  6. So, 27/42 + 6/90 = 149/210

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