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Add 15/10 and 42/20

1st number: 1 5/10, 2nd number: 2 2/20

15/10 + 42/20 is 18/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 20 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 10 × 2 = 20,
    15/10 = 15 × 2/10 × 2 = 30/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    42/20 = 42 × 1/20 × 1 = 42/20
  4. Add the two like fractions:
    30/20 + 42/20 = 30 + 42/20 = 72/20
  5. 72/20 simplified gives 18/5
  6. So, 15/10 + 42/20 = 18/5
    In mixed form: 33/5

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