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Add 80/20 and 15/7

1st number: 4 0/20, 2nd number: 2 1/7

80/20 + 15/7 is 43/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 7 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    80/20 = 80 × 7/20 × 7 = 560/140
  3. Likewise, for the 2nd fraction, since 7 × 20 = 140,
    15/7 = 15 × 20/7 × 20 = 300/140
  4. Add the two like fractions:
    560/140 + 300/140 = 560 + 300/140 = 860/140
  5. 860/140 simplified gives 43/7
  6. So, 80/20 + 15/7 = 43/7
    In mixed form: 61/7

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