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Add 21/2 and 50/80

1st number: 10 1/2, 2nd number: 50/80

21/2 + 50/80 is 89/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 2 × 40 = 80,
    21/2 = 21 × 40/2 × 40 = 840/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    50/80 = 50 × 1/80 × 1 = 50/80
  4. Add the two like fractions:
    840/80 + 50/80 = 840 + 50/80 = 890/80
  5. 890/80 simplified gives 89/8
  6. So, 21/2 + 50/80 = 89/8
    In mixed form: 111/8

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