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Add 5/42 and 30/90

5/42 + 30/90 is 19/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 90 is 630
  2. For the 1st fraction, since 42 × 15 = 630,
    5/42 = 5 × 15/42 × 15 = 75/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    30/90 = 30 × 7/90 × 7 = 210/630
  4. Add the two fractions:
    75/630 + 210/630 = 75 + 210/630 = 285/630
  5. After reducing the fraction, the answer is 19/42

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