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Add 8/42 and 15/90

8/42 + 15/90 is 5/14.

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,
    8/42 = 8 × 15/42 × 15 = 120/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    15/90 = 15 × 7/90 × 7 = 105/630
  4. Add the two like fractions:
    120/630 + 105/630 = 120 + 105/630 = 225/630
  5. 225/630 simplified gives 5/14
  6. So, 8/42 + 15/90 = 5/14

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