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Add 40/80 and 12/45

40/80 + 12/45 is 23/30.

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,
    12/45 = 12 × 16/45 × 16 = 192/720
  4. Add the two like fractions:
    360/720 + 192/720 = 360 + 192/720 = 552/720
  5. 552/720 simplified gives 23/30
  6. So, 40/80 + 12/45 = 23/30

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