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Add 40/80 and 36/45

40/80 + 36/45 is 13/10.

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,
    40/80 = 40 × 9/80 × 9 = 360/720
  3. Likewise, for the 2nd fraction, since 45 × 16 = 720,
    36/45 = 36 × 16/45 × 16 = 576/720
  4. Add the two like fractions:
    360/720 + 576/720 = 360 + 576/720 = 936/720
  5. 936/720 simplified gives 13/10
  6. So, 40/80 + 36/45 = 13/10
    In mixed form: 13/10

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