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Add 20/35 and 25/42

20/35 + 25/42 is 7/6.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 42 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 35 × 6 = 210,
    20/35 = 20 × 6/35 × 6 = 120/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    25/42 = 25 × 5/42 × 5 = 125/210
  4. Add the two like fractions:
    120/210 + 125/210 = 120 + 125/210 = 245/210
  5. 245/210 simplified gives 7/6
  6. So, 20/35 + 25/42 = 7/6
    In mixed form: 11/6

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