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Add 20/40 and 5/18

20/40 + 5/18 is 7/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 18 is 360
  2. For the 1st fraction, since 40 × 9 = 360,
    20/40 = 20 × 9/40 × 9 = 180/360
  3. Likewise, for the 2nd fraction, since 18 × 20 = 360,
    5/18 = 5 × 20/18 × 20 = 100/360
  4. Add the two fractions:
    180/360 + 100/360 = 180 + 100/360 = 280/360
  5. 280/360 simplified gives 7/9
  6. So, 20/40 + 5/18 = 7/9

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