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Add 10/20 and 9/30

10/20 + 9/30 is 4/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 30 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 20 × 3 = 60,
    10/20 = 10 × 3/20 × 3 = 30/60
  3. Likewise, for the 2nd fraction, since 30 × 2 = 60,
    9/30 = 9 × 2/30 × 2 = 18/60
  4. Add the two like fractions:
    30/60 + 18/60 = 30 + 18/60 = 48/60
  5. 48/60 simplified gives 4/5
  6. So, 10/20 + 9/30 = 4/5

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