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Add 12/72 and 5/45

12/72 + 5/45 is 5/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 45 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    12/72 = 12 × 5/72 × 5 = 60/360
  3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
    5/45 = 5 × 8/45 × 8 = 40/360
  4. Add the two like fractions:
    60/360 + 40/360 = 60 + 40/360 = 100/360
  5. 100/360 simplified gives 5/18
  6. So, 12/72 + 5/45 = 5/18

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