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Add 1/12 and 70/90

1/12 + 70/90 is 31/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 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,
    70/90 = 70 × 2/90 × 2 = 140/180
  4. Add the two like fractions:
    15/180 + 140/180 = 15 + 140/180 = 155/180
  5. 155/180 simplified gives 31/36
  6. So, 1/12 + 70/90 = 31/36

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