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Add 18/7 and 42/90

1st number: 2 4/7, 2nd number: 42/90

18/7 + 42/90 is 319/105.

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,
    42/90 = 42 × 7/90 × 7 = 294/630
  4. Add the two fractions:
    1620/630 + 294/630 = 1620 + 294/630 = 1914/630
  5. 1914/630 simplified gives 319/105
  6. So, 18/7 + 42/90 = 319/105
    In mixed form: 34/105

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