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Add 1/20 and 4/9

1/20 + 4/9 is 89/180.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 9 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 9 × 20 = 180,
    4/9 = 4 × 20/9 × 20 = 80/180
  4. Add the two like fractions:
    9/180 + 80/180 = 9 + 80/180 = 89/180
  5. So, 1/20 + 4/9 = 89/180

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