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Add 3/90 and 30/70

3/90 + 30/70 is 97/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 70 is 630
  2. For the 1st fraction, since 90 × 7 = 630,
    3/90 = 3 × 7/90 × 7 = 21/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    30/70 = 30 × 9/70 × 9 = 270/630
  4. Add the two fractions:
    21/630 + 270/630 = 21 + 270/630 = 291/630
  5. After reducing the fraction, the answer is 97/210

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