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Add 90/70 and 35/18

1st number: 1 20/70, 2nd number: 1 17/18

90/70 + 35/18 is 407/126.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 18 is 630
  2. For the 1st fraction, since 70 × 9 = 630,
    90/70 = 90 × 9/70 × 9 = 810/630
  3. Likewise, for the 2nd fraction, since 18 × 35 = 630,
    35/18 = 35 × 35/18 × 35 = 1225/630
  4. Add the two fractions:
    810/630 + 1225/630 = 810 + 1225/630 = 2035/630
  5. After reducing the fraction, the answer is 407/126
  6. In mixed form: 329/126

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