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Add 1/90 and 12/42

1/90 + 12/42 is 187/630.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 90 × 7 = 630,
    1/90 = 1 × 7/90 × 7 = 7/630
  3. Likewise, for the 2nd fraction, since 42 × 15 = 630,
    12/42 = 12 × 15/42 × 15 = 180/630
  4. Add the two like fractions:
    7/630 + 180/630 = 7 + 180/630 = 187/630
  5. So, 1/90 + 12/42 = 187/630

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