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Add 90/80 and 15/4

1st number: 1 10/80, 2nd number: 3 3/4

90/80 + 15/4 is 39/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 4 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 80 × 1 = 80,
    90/80 = 90 × 1/80 × 1 = 90/80
  3. Likewise, for the 2nd fraction, since 4 × 20 = 80,
    15/4 = 15 × 20/4 × 20 = 300/80
  4. Add the two like fractions:
    90/80 + 300/80 = 90 + 300/80 = 390/80
  5. 390/80 simplified gives 39/8
  6. So, 90/80 + 15/4 = 39/8
    In mixed form: 47/8

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