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Add 2/20 and 1/45

2/20 + 1/45 is 11/90.

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,
    2/20 = 2 × 9/20 × 9 = 18/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    1/45 = 1 × 4/45 × 4 = 4/180
  4. Add the two like fractions:
    18/180 + 4/180 = 18 + 4/180 = 22/180
  5. 22/180 simplified gives 11/90
  6. So, 2/20 + 1/45 = 11/90

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