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Add 12/21 and 42/10

1st number: 12/21, 2nd number: 4 2/10

12/21 + 42/10 is 167/35.

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,
    12/21 = 12 × 10/21 × 10 = 120/210
  3. Likewise, for the 2nd fraction, since 10 × 21 = 210,
    42/10 = 42 × 21/10 × 21 = 882/210
  4. Add the two like fractions:
    120/210 + 882/210 = 120 + 882/210 = 1002/210
  5. 1002/210 simplified gives 167/35
  6. So, 12/21 + 42/10 = 167/35
    In mixed form: 427/35

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