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Add 15/10 and 72/20

1st number: 1 5/10, 2nd number: 3 12/20

15/10 + 72/20 is 51/10.

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,
    72/20 = 72 × 1/20 × 1 = 72/20
  4. Add the two like fractions:
    30/20 + 72/20 = 30 + 72/20 = 102/20
  5. 102/20 simplified gives 51/10
  6. So, 15/10 + 72/20 = 51/10
    In mixed form: 51/10

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