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Add 10/40 and 28/90

10/40 + 28/90 is 101/180.

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,
    10/40 = 10 × 9/40 × 9 = 90/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    28/90 = 28 × 4/90 × 4 = 112/360
  4. Add the two like fractions:
    90/360 + 112/360 = 90 + 112/360 = 202/360
  5. 202/360 simplified gives 101/180
  6. So, 10/40 + 28/90 = 101/180

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