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Add 15/4 and 90/5

1st number: 3 3/4, 2nd number: 18 0/5

15/4 + 90/5 is 87/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 5 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 4 × 5 = 20,
    15/4 = 15 × 5/4 × 5 = 75/20
  3. Likewise, for the 2nd fraction, since 5 × 4 = 20,
    90/5 = 90 × 4/5 × 4 = 360/20
  4. Add the two like fractions:
    75/20 + 360/20 = 75 + 360/20 = 435/20
  5. 435/20 simplified gives 87/4
  6. So, 15/4 + 90/5 = 87/4
    In mixed form: 213/4

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