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Add 5/21 and 20/10

1st number: 5/21, 2nd number: 2 0/10

5/21 + 20/10 is 47/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 10 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 21 × 10 = 210,
    5/21 = 5 × 10/21 × 10 = 50/210
  3. Likewise, for the 2nd fraction, since 10 × 21 = 210,
    20/10 = 20 × 21/10 × 21 = 420/210
  4. Add the two like fractions:
    50/210 + 420/210 = 50 + 420/210 = 470/210
  5. 470/210 simplified gives 47/21
  6. So, 5/21 + 20/10 = 47/21
    In mixed form: 25/21

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