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Add 18/7 and 30/90

1st number: 2 4/7, 2nd number: 30/90

18/7 + 30/90 is 61/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 90 is 630
  2. For the 1st fraction, since 7 × 90 = 630,
    18/7 = 18 × 90/7 × 90 = 1620/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    30/90 = 30 × 7/90 × 7 = 210/630
  4. Add the two fractions:
    1620/630 + 210/630 = 1620 + 210/630 = 1830/630
  5. 1830/630 simplified gives 61/21
  6. So, 18/7 + 30/90 = 61/21
    In mixed form: 219/21

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