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Add 30/20 and 60/80

1st number: 1 10/20, 2nd number: 60/80

30/20 + 60/80 is 9/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 20 × 4 = 80,
    30/20 = 30 × 4/20 × 4 = 120/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    60/80 = 60 × 1/80 × 1 = 60/80
  4. Add the two like fractions:
    120/80 + 60/80 = 120 + 60/80 = 180/80
  5. 180/80 simplified gives 9/4
  6. So, 30/20 + 60/80 = 9/4
    In mixed form: 21/4

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