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Add 12/42 and 7/90

12/42 + 7/90 is 229/630.

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,
    12/42 = 12 × 15/42 × 15 = 180/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    7/90 = 7 × 7/90 × 7 = 49/630
  4. Add the two like fractions:
    180/630 + 49/630 = 180 + 49/630 = 229/630
  5. So, 12/42 + 7/90 = 229/630

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