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Add 80/20 and 30/70

1st number: 4 0/20, 2nd number: 30/70

80/20 + 30/70 is 31/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 70 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 70 × 2 = 140,
    30/70 = 30 × 2/70 × 2 = 60/140
  4. Add the two like fractions:
    560/140 + 60/140 = 560 + 60/140 = 620/140
  5. 620/140 simplified gives 31/7
  6. So, 80/20 + 30/70 = 31/7
    In mixed form: 43/7

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