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Add 20/35 and 18/42

20/35 + 18/42 is 1/1.

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,
    18/42 = 18 × 5/42 × 5 = 90/210
  4. Add the two like fractions:
    120/210 + 90/210 = 120 + 90/210 = 210/210
  5. 210/210 simplified gives 1/1
  6. So, 20/35 + 18/42 = 1/1

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