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Add 1/20 and 18/45

1/20 + 18/45 is 9/20.

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,
    1/20 = 1 × 9/20 × 9 = 9/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    18/45 = 18 × 4/45 × 4 = 72/180
  4. Add the two like fractions:
    9/180 + 72/180 = 9 + 72/180 = 81/180
  5. 81/180 simplified gives 9/20
  6. So, 1/20 + 18/45 = 9/20

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