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Add 7/40 and 54/90

7/40 + 54/90 is 31/40.

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,
    7/40 = 7 × 9/40 × 9 = 63/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    54/90 = 54 × 4/90 × 4 = 216/360
  4. Add the two like fractions:
    63/360 + 216/360 = 63 + 216/360 = 279/360
  5. 279/360 simplified gives 31/40
  6. So, 7/40 + 54/90 = 31/40

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