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Add 63/21 and 6/80

1st number: 3 0/21, 2nd number: 6/80

63/21 + 6/80 is 123/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 80 is 1680

    Next, find the equivalent fraction of both fractional numbers with denominator 1680
  2. For the 1st fraction, since 21 × 80 = 1680,
    63/21 = 63 × 80/21 × 80 = 5040/1680
  3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
    6/80 = 6 × 21/80 × 21 = 126/1680
  4. Add the two like fractions:
    5040/1680 + 126/1680 = 5040 + 126/1680 = 5166/1680
  5. 5166/1680 simplified gives 123/40
  6. So, 63/21 + 6/80 = 123/40
    In mixed form: 33/40

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