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Add 6/10 and 15/42

6/10 + 15/42 is 67/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 42 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 10 × 21 = 210,
    6/10 = 6 × 21/10 × 21 = 126/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    15/42 = 15 × 5/42 × 5 = 75/210
  4. Add the two like fractions:
    126/210 + 75/210 = 126 + 75/210 = 201/210
  5. 201/210 simplified gives 67/70
  6. So, 6/10 + 15/42 = 67/70

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