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Add 84/4 and 40/90

1st number: 21 0/4, 2nd number: 40/90

84/4 + 40/90 is 193/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 90 is 180
  2. For the 1st fraction, since 4 × 45 = 180,
    84/4 = 84 × 45/4 × 45 = 3780/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    40/90 = 40 × 2/90 × 2 = 80/180
  4. Add the two fractions:
    3780/180 + 80/180 = 3780 + 80/180 = 3860/180
  5. 3860/180 simplified gives 193/9
  6. So, 84/4 + 40/90 = 193/9
    In mixed form: 214/9

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