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Add 90/16 and 4/5

1st number: 5 10/16, 2nd number: 4/5

90/16 + 4/5 is 257/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 5 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 16 × 5 = 80,
    90/16 = 90 × 5/16 × 5 = 450/80
  3. Likewise, for the 2nd fraction, since 5 × 16 = 80,
    4/5 = 4 × 16/5 × 16 = 64/80
  4. Add the two like fractions:
    450/80 + 64/80 = 450 + 64/80 = 514/80
  5. 514/80 simplified gives 257/40
  6. So, 90/16 + 4/5 = 257/40
    In mixed form: 617/40

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