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Add 42/20 and 25/18

1st number: 2 2/20, 2nd number: 1 7/18

42/20 + 25/18 is 157/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 18 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 18 × 10 = 180,
    25/18 = 25 × 10/18 × 10 = 250/180
  4. Add the two like fractions:
    378/180 + 250/180 = 378 + 250/180 = 628/180
  5. 628/180 simplified gives 157/45
  6. So, 42/20 + 25/18 = 157/45
    In mixed form: 322/45

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