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Add 20/30 and 3/42

20/30 + 3/42 is 31/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 42 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 30 × 7 = 210,
    20/30 = 20 × 7/30 × 7 = 140/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    3/42 = 3 × 5/42 × 5 = 15/210
  4. Add the two like fractions:
    140/210 + 15/210 = 140 + 15/210 = 155/210
  5. 155/210 simplified gives 31/42
  6. So, 20/30 + 3/42 = 31/42

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