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Add 21/2 and 75/10

1st number: 10 1/2, 2nd number: 7 5/10

21/2 + 75/10 is 18/1.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 10 is 10

    Next, find the equivalent fraction of both fractional numbers with denominator 10
  2. For the 1st fraction, since 2 × 5 = 10,
    21/2 = 21 × 5/2 × 5 = 105/10
  3. Likewise, for the 2nd fraction, since 10 × 1 = 10,
    75/10 = 75 × 1/10 × 1 = 75/10
  4. Add the two like fractions:
    105/10 + 75/10 = 105 + 75/10 = 180/10
  5. 180/10 simplified gives 18/1
  6. So, 21/2 + 75/10 = 18/1

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