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Add 20/30 and 8/21

20/30 + 8/21 is 22/21.

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,
    8/21 = 8 × 10/21 × 10 = 80/210
  4. Add the two like fractions:
    140/210 + 80/210 = 140 + 80/210 = 220/210
  5. 220/210 simplified gives 22/21
  6. So, 20/30 + 8/21 = 22/21
    In mixed form: 11/21

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