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Add 10/18 and 42/20

1st number: 10/18, 2nd number: 2 2/20

10/18 + 42/20 is 239/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 18 × 10 = 180,
    10/18 = 10 × 10/18 × 10 = 100/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    42/20 = 42 × 9/20 × 9 = 378/180
  4. Add the two like fractions:
    100/180 + 378/180 = 100 + 378/180 = 478/180
  5. 478/180 simplified gives 239/90
  6. So, 10/18 + 42/20 = 239/90
    In mixed form: 259/90

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