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Add 70/42 and 10/15

1st number: 1 28/42, 2nd number: 10/15

70/42 + 10/15 is 7/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 15 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 42 × 5 = 210,
    70/42 = 70 × 5/42 × 5 = 350/210
  3. Likewise, for the 2nd fraction, since 15 × 14 = 210,
    10/15 = 10 × 14/15 × 14 = 140/210
  4. Add the two like fractions:
    350/210 + 140/210 = 350 + 140/210 = 490/210
  5. 490/210 simplified gives 7/3
  6. So, 70/42 + 10/15 = 7/3
    In mixed form: 21/3

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