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Add 70/20 and 63/80

1st number: 3 10/20, 2nd number: 63/80

70/20 + 63/80 is 343/80.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 20 × 4 = 80,
    70/20 = 70 × 4/20 × 4 = 280/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    63/80 = 63 × 1/80 × 1 = 63/80
  4. Add the two like fractions:
    280/80 + 63/80 = 280 + 63/80 = 343/80
  5. So, 70/20 + 63/80 = 343/80
    In mixed form: 423/80

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