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Add 7/18 and 16/40

7/18 + 16/40 is 71/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 40 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 18 × 20 = 360,
    7/18 = 7 × 20/18 × 20 = 140/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    16/40 = 16 × 9/40 × 9 = 144/360
  4. Add the two like fractions:
    140/360 + 144/360 = 140 + 144/360 = 284/360
  5. 284/360 simplified gives 71/90
  6. So, 7/18 + 16/40 = 71/90

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