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Add 8/40 and 81/90

8/40 + 81/90 is 11/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 90 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 40 × 9 = 360,
    8/40 = 8 × 9/40 × 9 = 72/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    81/90 = 81 × 4/90 × 4 = 324/360
  4. Add the two like fractions:
    72/360 + 324/360 = 72 + 324/360 = 396/360
  5. 396/360 simplified gives 11/10
  6. So, 8/40 + 81/90 = 11/10
    In mixed form: 11/10

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