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Add 6/40 and 64/90

6/40 + 64/90 is 31/36.

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,
    6/40 = 6 × 9/40 × 9 = 54/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    64/90 = 64 × 4/90 × 4 = 256/360
  4. Add the two like fractions:
    54/360 + 256/360 = 54 + 256/360 = 310/360
  5. 310/360 simplified gives 31/36
  6. So, 6/40 + 64/90 = 31/36

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