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Add 18/3 and 42/20

1st number: 6 0/3, 2nd number: 2 2/20

18/3 + 42/20 is 81/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 20 is 60
  2. For the 1st fraction, since 3 × 20 = 60,
    18/3 = 18 × 20/3 × 20 = 360/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    42/20 = 42 × 3/20 × 3 = 126/60
  4. Add the two fractions:
    360/60 + 126/60 = 360 + 126/60 = 486/60
  5. 486/60 simplified gives 81/10
  6. So, 18/3 + 42/20 = 81/10
    In mixed form: 81/10

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