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Add 80/8 and 75/21

1st number: 10 0/8, 2nd number: 3 12/21

80/8 + 75/21 is 95/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 21 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 8 × 21 = 168,
    80/8 = 80 × 21/8 × 21 = 1680/168
  3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
    75/21 = 75 × 8/21 × 8 = 600/168
  4. Add the two like fractions:
    1680/168 + 600/168 = 1680 + 600/168 = 2280/168
  5. 2280/168 simplified gives 95/7
  6. So, 80/8 + 75/21 = 95/7
    In mixed form: 134/7

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