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Add 45/80 and 18/12

1st number: 45/80, 2nd number: 1 6/12

45/80 + 18/12 is 33/16.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 12 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 80 × 3 = 240,
    45/80 = 45 × 3/80 × 3 = 135/240
  3. Likewise, for the 2nd fraction, since 12 × 20 = 240,
    18/12 = 18 × 20/12 × 20 = 360/240
  4. Add the two like fractions:
    135/240 + 360/240 = 135 + 360/240 = 495/240
  5. 495/240 simplified gives 33/16
  6. So, 45/80 + 18/12 = 33/16
    In mixed form: 21/16

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