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Add 42/20 and 16/9

1st number: 2 2/20, 2nd number: 1 7/9

42/20 + 16/9 is 349/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 9 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    42/20 = 42 × 9/20 × 9 = 378/180
  3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
    16/9 = 16 × 20/9 × 20 = 320/180
  4. Add the two like fractions:
    378/180 + 320/180 = 378 + 320/180 = 698/180
  5. 698/180 simplified gives 349/90
  6. So, 42/20 + 16/9 = 349/90
    In mixed form: 379/90

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