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Add 49/21 and 20/30

1st number: 2 7/21, 2nd number: 20/30

49/21 + 20/30 is 3/1.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 30 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 21 × 10 = 210,
    49/21 = 49 × 10/21 × 10 = 490/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    20/30 = 20 × 7/30 × 7 = 140/210
  4. Add the two like fractions:
    490/210 + 140/210 = 490 + 140/210 = 630/210
  5. 630/210 simplified gives 3/1
  6. So, 49/21 + 20/30 = 3/1

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