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Add 42/20 and 9/45

1st number: 2 2/20, 2nd number: 9/45

42/20 + 9/45 is 23/10.

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,
    9/45 = 9 × 4/45 × 4 = 36/180
  4. Add the two like fractions:
    378/180 + 36/180 = 378 + 36/180 = 414/180
  5. 414/180 simplified gives 23/10
  6. So, 42/20 + 9/45 = 23/10
    In mixed form: 23/10

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