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Add 90/12 and 12/45

1st number: 7 6/12, 2nd number: 12/45

90/12 + 12/45 is 233/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 45 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 12 × 15 = 180,
    90/12 = 90 × 15/12 × 15 = 1350/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    12/45 = 12 × 4/45 × 4 = 48/180
  4. Add the two like fractions:
    1350/180 + 48/180 = 1350 + 48/180 = 1398/180
  5. 1398/180 simplified gives 233/30
  6. So, 90/12 + 12/45 = 233/30
    In mixed form: 723/30

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