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Add 27/9 and 90/40

1st number: 3 0/9, 2nd number: 2 10/40

27/9 + 90/40 is 21/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 40 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 9 × 40 = 360,
    27/9 = 27 × 40/9 × 40 = 1080/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    90/40 = 90 × 9/40 × 9 = 810/360
  4. Add the two like fractions:
    1080/360 + 810/360 = 1080 + 810/360 = 1890/360
  5. 1890/360 simplified gives 21/4
  6. So, 27/9 + 90/40 = 21/4
    In mixed form: 51/4

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