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Add 90/20 and 60/15

1st number: 4 10/20, 2nd number: 4 0/15

90/20 + 60/15 is 17/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 15 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 20 × 3 = 60,
    90/20 = 90 × 3/20 × 3 = 270/60
  3. Likewise, for the 2nd fraction, since 15 × 4 = 60,
    60/15 = 60 × 4/15 × 4 = 240/60
  4. Add the two like fractions:
    270/60 + 240/60 = 270 + 240/60 = 510/60
  5. 510/60 simplified gives 17/2
  6. So, 90/20 + 60/15 = 17/2
    In mixed form: 81/2

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