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Add 64/4 and 18/90

1st number: 16 0/4, 2nd number: 18/90

64/4 + 18/90 is 81/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 4 × 45 = 180,
    64/4 = 64 × 45/4 × 45 = 2880/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    18/90 = 18 × 2/90 × 2 = 36/180
  4. Add the two like fractions:
    2880/180 + 36/180 = 2880 + 36/180 = 2916/180
  5. 2916/180 simplified gives 81/5
  6. So, 64/4 + 18/90 = 81/5
    In mixed form: 161/5

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