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Add 10/90 and 16/42

10/90 + 16/42 is 31/63.

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,
    10/90 = 10 × 7/90 × 7 = 70/630
  3. Likewise, for the 2nd fraction, since 42 × 15 = 630,
    16/42 = 16 × 15/42 × 15 = 240/630
  4. Add the two fractions:
    70/630 + 240/630 = 70 + 240/630 = 310/630
  5. 310/630 simplified gives 31/63
  6. So, 10/90 + 16/42 = 31/63

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