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Add 21/2 and 20/8

1st number: 10 1/2, 2nd number: 2 4/8

21/2 + 20/8 is 13/1.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 8 is 8
  2. For the 1st fraction, since 2 × 4 = 8,
    21/2 = 21 × 4/2 × 4 = 84/8
  3. Likewise, for the 2nd fraction, since 8 × 1 = 8,
    20/8 = 20 × 1/8 × 1 = 20/8
  4. Add the two fractions:
    84/8 + 20/8 = 84 + 20/8 = 104/8
  5. 104/8 simplified gives 13/1
  6. So, 21/2 + 20/8 = 13/1

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