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Add 30/70 and 9/90

30/70 + 9/90 is 37/70.

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,
    30/70 = 30 × 9/70 × 9 = 270/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    9/90 = 9 × 7/90 × 7 = 63/630
  4. Add the two fractions:
    270/630 + 63/630 = 270 + 63/630 = 333/630
  5. After reducing the fraction, the answer is 37/70

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