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Add 9/70 and 30/90

9/70 + 30/90 is 97/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 90 is 630
  2. For the 1st fraction, since 70 × 9 = 630,
    9/70 = 9 × 9/70 × 9 = 81/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    30/90 = 30 × 7/90 × 7 = 210/630
  4. Add the two fractions:
    81/630 + 210/630 = 81 + 210/630 = 291/630
  5. 291/630 simplified gives 97/210
  6. So, 9/70 + 30/90 = 97/210

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