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Add 10/20 and 30/15

1st number: 10/20, 2nd number: 2 0/15

10/20 + 30/15 is 5/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 15 is 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 15 × 4 = 60,
    30/15 = 30 × 4/15 × 4 = 120/60
  4. Add the two fractions:
    30/60 + 120/60 = 30 + 120/60 = 150/60
  5. 150/60 simplified gives 5/2
  6. So, 10/20 + 30/15 = 5/2
    In mixed form: 21/2

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