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Add 30/70 and 90/18

1st number: 30/70, 2nd number: 5 0/18

30/70 + 90/18 is 38/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 18 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 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 18 × 35 = 630,
    90/18 = 90 × 35/18 × 35 = 3150/630
  4. Add the two like fractions:
    270/630 + 3150/630 = 270 + 3150/630 = 3420/630
  5. 3420/630 simplified gives 38/7
  6. So, 30/70 + 90/18 = 38/7
    In mixed form: 53/7

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