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Add 3/40 and 32/90

3/40 + 32/90 is 31/72.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 90 is 360
  2. For the 1st fraction, since 40 × 9 = 360,
    3/40 = 3 × 9/40 × 9 = 27/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    32/90 = 32 × 4/90 × 4 = 128/360
  4. Add the two fractions:
    27/360 + 128/360 = 27 + 128/360 = 155/360
  5. After reducing the fraction, the answer is 31/72

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