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Add 21/5 and 56/16

1st number: 4 1/5, 2nd number: 3 8/16

21/5 + 56/16 is 77/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 16 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 5 × 16 = 80,
    21/5 = 21 × 16/5 × 16 = 336/80
  3. Likewise, for the 2nd fraction, since 16 × 5 = 80,
    56/16 = 56 × 5/16 × 5 = 280/80
  4. Add the two like fractions:
    336/80 + 280/80 = 336 + 280/80 = 616/80
  5. 616/80 simplified gives 77/10
  6. So, 21/5 + 56/16 = 77/10
    In mixed form: 77/10

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