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Add 42/20 and 56/45

1st number: 2 2/20, 2nd number: 1 11/45

42/20 + 56/45 is 301/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 45 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 45 × 4 = 180,
    56/45 = 56 × 4/45 × 4 = 224/180
  4. Add the two like fractions:
    378/180 + 224/180 = 378 + 224/180 = 602/180
  5. 602/180 simplified gives 301/90
  6. So, 42/20 + 56/45 = 301/90
    In mixed form: 331/90

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