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Add 20/30 and 2/21

20/30 + 2/21 is 16/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 21 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 21 × 10 = 210,
    2/21 = 2 × 10/21 × 10 = 20/210
  4. Add the two like fractions:
    140/210 + 20/210 = 140 + 20/210 = 160/210
  5. 160/210 simplified gives 16/21
  6. So, 20/30 + 2/21 = 16/21

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