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Add 70/42 and 21/12

1st number: 1 28/42, 2nd number: 1 9/12

70/42 + 21/12 is 41/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 12 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 42 × 2 = 84,
    70/42 = 70 × 2/42 × 2 = 140/84
  3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
    21/12 = 21 × 7/12 × 7 = 147/84
  4. Add the two like fractions:
    140/84 + 147/84 = 140 + 147/84 = 287/84
  5. 287/84 simplified gives 41/12
  6. So, 70/42 + 21/12 = 41/12
    In mixed form: 35/12

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