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Add 20/25 and 36/72

20/25 + 36/72 is 13/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 72 is 1800

    Next, find the equivalent fraction of both fractional numbers with denominator 1800
  2. For the 1st fraction, since 25 × 72 = 1800,
    20/25 = 20 × 72/25 × 72 = 1440/1800
  3. Likewise, for the 2nd fraction, since 72 × 25 = 1800,
    36/72 = 36 × 25/72 × 25 = 900/1800
  4. Add the two like fractions:
    1440/1800 + 900/1800 = 1440 + 900/1800 = 2340/1800
  5. 2340/1800 simplified gives 13/10
  6. So, 20/25 + 36/72 = 13/10
    In mixed form: 13/10

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