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Add 7/80 and 21/5

1st number: 7/80, 2nd number: 4 1/5

7/80 + 21/5 is 343/80.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 80 × 1 = 80,
    7/80 = 7 × 1/80 × 1 = 7/80
  3. Likewise, for the 2nd fraction, since 5 × 16 = 80,
    21/5 = 21 × 16/5 × 16 = 336/80
  4. Add the two like fractions:
    7/80 + 336/80 = 7 + 336/80 = 343/80
  5. So, 7/80 + 21/5 = 343/80
    In mixed form: 423/80

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