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Add 28/90 and 14/42

28/90 + 14/42 is 29/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 42 is 630
  2. For the 1st fraction, since 90 × 7 = 630,
    28/90 = 28 × 7/90 × 7 = 196/630
  3. Likewise, for the 2nd fraction, since 42 × 15 = 630,
    14/42 = 14 × 15/42 × 15 = 210/630
  4. Add the two fractions:
    196/630 + 210/630 = 196 + 210/630 = 406/630
  5. 406/630 simplified gives 29/45
  6. So, 28/90 + 14/42 = 29/45

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