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Add 1/12 and 20/90

1/12 + 20/90 is 11/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 90 is 180
  2. For the 1st fraction, since 12 × 15 = 180,
    1/12 = 1 × 15/12 × 15 = 15/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    20/90 = 20 × 2/90 × 2 = 40/180
  4. Add the two fractions:
    15/180 + 40/180 = 15 + 40/180 = 55/180
  5. 55/180 simplified gives 11/36
  6. So, 1/12 + 20/90 = 11/36

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