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Add 12/2 and 90/21

1st number: 6 0/2, 2nd number: 4 6/21

12/2 + 90/21 is 72/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 21 is 42
  2. For the 1st fraction, since 2 × 21 = 42,
    12/2 = 12 × 21/2 × 21 = 252/42
  3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
    90/21 = 90 × 2/21 × 2 = 180/42
  4. Add the two fractions:
    252/42 + 180/42 = 252 + 180/42 = 432/42
  5. 432/42 simplified gives 72/7
  6. So, 12/2 + 90/21 = 72/7
    In mixed form: 102/7

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