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Add 21/10 and 42/35

1st number: 2 1/10, 2nd number: 1 7/35

21/10 + 42/35 is 33/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 35 is 70

    Next, find the equivalent fraction of both fractional numbers with denominator 70
  2. For the 1st fraction, since 10 × 7 = 70,
    21/10 = 21 × 7/10 × 7 = 147/70
  3. Likewise, for the 2nd fraction, since 35 × 2 = 70,
    42/35 = 42 × 2/35 × 2 = 84/70
  4. Add the two like fractions:
    147/70 + 84/70 = 147 + 84/70 = 231/70
  5. 231/70 simplified gives 33/10
  6. So, 21/10 + 42/35 = 33/10
    In mixed form: 33/10

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