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Add 9/42 and 5/90

9/42 + 5/90 is 17/63.

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,
    9/42 = 9 × 15/42 × 15 = 135/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    5/90 = 5 × 7/90 × 7 = 35/630
  4. Add the two like fractions:
    135/630 + 35/630 = 135 + 35/630 = 170/630
  5. 170/630 simplified gives 17/63
  6. So, 9/42 + 5/90 = 17/63

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