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Add 12/45 and 4/90

12/45 + 4/90 is 14/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 90 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 45 × 2 = 90,
    12/45 = 12 × 2/45 × 2 = 24/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    4/90 = 4 × 1/90 × 1 = 4/90
  4. Add the two like fractions:
    24/90 + 4/90 = 24 + 4/90 = 28/90
  5. 28/90 simplified gives 14/45
  6. So, 12/45 + 4/90 = 14/45

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