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Add 1/20 and 4/72

1/20 + 4/72 is 19/180.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 20 × 18 = 360,
    1/20 = 1 × 18/20 × 18 = 18/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    4/72 = 4 × 5/72 × 5 = 20/360
  4. Add the two like fractions:
    18/360 + 20/360 = 18 + 20/360 = 38/360
  5. 38/360 simplified gives 19/180
  6. So, 1/20 + 4/72 = 19/180

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