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Add 18/72 and 5/45

18/72 + 5/45 is 13/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 45 is 360
  2. For the 1st fraction, since 72 × 5 = 360,
    18/72 = 18 × 5/72 × 5 = 90/360
  3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
    5/45 = 5 × 8/45 × 8 = 40/360
  4. Add the two fractions:
    90/360 + 40/360 = 90 + 40/360 = 130/360
  5. 130/360 simplified gives 13/36
  6. So, 18/72 + 5/45 = 13/36

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