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Add 90/12 and 42/90

1st number: 7 6/12, 2nd number: 42/90

90/12 + 42/90 is 239/30.

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,
    90/12 = 90 × 15/12 × 15 = 1350/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    42/90 = 42 × 2/90 × 2 = 84/180
  4. Add the two fractions:
    1350/180 + 84/180 = 1350 + 84/180 = 1434/180
  5. 1434/180 simplified gives 239/30
  6. So, 90/12 + 42/90 = 239/30
    In mixed form: 729/30

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