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Add 25/21 and 30/35

1st number: 1 4/21, 2nd number: 30/35

25/21 + 30/35 is 43/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 35 is 105

    Next, find the equivalent fraction of both fractional numbers with denominator 105
  2. For the 1st fraction, since 21 × 5 = 105,
    25/21 = 25 × 5/21 × 5 = 125/105
  3. Likewise, for the 2nd fraction, since 35 × 3 = 105,
    30/35 = 30 × 3/35 × 3 = 90/105
  4. Add the two like fractions:
    125/105 + 90/105 = 125 + 90/105 = 215/105
  5. 215/105 simplified gives 43/21
  6. So, 25/21 + 30/35 = 43/21
    In mixed form: 21/21

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