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Add 15/10 and 72/4

1st number: 1 5/10, 2nd number: 18 0/4

15/10 + 72/4 is 39/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 4 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 4 × 5 = 20,
    72/4 = 72 × 5/4 × 5 = 360/20
  4. Add the two like fractions:
    30/20 + 360/20 = 30 + 360/20 = 390/20
  5. 390/20 simplified gives 39/2
  6. So, 15/10 + 72/4 = 39/2
    In mixed form: 191/2

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