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Add 20/80 and 36/45

20/80 + 36/45 is 21/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 45 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 80 × 9 = 720,
    20/80 = 20 × 9/80 × 9 = 180/720
  3. Likewise, for the 2nd fraction, since 45 × 16 = 720,
    36/45 = 36 × 16/45 × 16 = 576/720
  4. Add the two like fractions:
    180/720 + 576/720 = 180 + 576/720 = 756/720
  5. 756/720 simplified gives 21/20
  6. So, 20/80 + 36/45 = 21/20
    In mixed form: 11/20

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