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Add 90/6 and 20/5

1st number: 15 0/6, 2nd number: 4 0/5

90/6 + 20/5 is 19/1.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 5 is 30

    Next, find the equivalent fraction of both fractional numbers with denominator 30
  2. For the 1st fraction, since 6 × 5 = 30,
    90/6 = 90 × 5/6 × 5 = 450/30
  3. Likewise, for the 2nd fraction, since 5 × 6 = 30,
    20/5 = 20 × 6/5 × 6 = 120/30
  4. Add the two like fractions:
    450/30 + 120/30 = 450 + 120/30 = 570/30
  5. 570/30 simplified gives 19/1
  6. So, 90/6 + 20/5 = 19/1

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