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Add 70/18 and 30/80

1st number: 3 16/18, 2nd number: 30/80

70/18 + 30/80 is 307/72.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 80 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 18 × 40 = 720,
    70/18 = 70 × 40/18 × 40 = 2800/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    30/80 = 30 × 9/80 × 9 = 270/720
  4. Add the two like fractions:
    2800/720 + 270/720 = 2800 + 270/720 = 3070/720
  5. 3070/720 simplified gives 307/72
  6. So, 70/18 + 30/80 = 307/72
    In mixed form: 419/72

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