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Add 30/56 and 20/42

30/56 + 20/42 is 85/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 42 is 168
  2. For the 1st fraction, since 56 × 3 = 168,
    30/56 = 30 × 3/56 × 3 = 90/168
  3. Likewise, for the 2nd fraction, since 42 × 4 = 168,
    20/42 = 20 × 4/42 × 4 = 80/168
  4. Add the two fractions:
    90/168 + 80/168 = 90 + 80/168 = 170/168
  5. 170/168 simplified gives 85/84
  6. So, 30/56 + 20/42 = 85/84
    In mixed form: 11/84

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