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Add 80/8 and 70/18

1st number: 10 0/8, 2nd number: 3 16/18

80/8 + 70/18 is 125/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 18 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 8 × 9 = 72,
    80/8 = 80 × 9/8 × 9 = 720/72
  3. Likewise, for the 2nd fraction, since 18 × 4 = 72,
    70/18 = 70 × 4/18 × 4 = 280/72
  4. Add the two like fractions:
    720/72 + 280/72 = 720 + 280/72 = 1000/72
  5. 1000/72 simplified gives 125/9
  6. So, 80/8 + 70/18 = 125/9
    In mixed form: 138/9

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