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Add 54/8 and 90/20

1st number: 6 6/8, 2nd number: 4 10/20

54/8 + 90/20 is 45/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 20 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 8 × 5 = 40,
    54/8 = 54 × 5/8 × 5 = 270/40
  3. Likewise, for the 2nd fraction, since 20 × 2 = 40,
    90/20 = 90 × 2/20 × 2 = 180/40
  4. Add the two like fractions:
    270/40 + 180/40 = 270 + 180/40 = 450/40
  5. 450/40 simplified gives 45/4
  6. So, 54/8 + 90/20 = 45/4
    In mixed form: 111/4

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