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Add 70/18 and 42/12

1st number: 3 16/18, 2nd number: 3 6/12

70/18 + 42/12 is 133/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 12 is 36

    Next, find the equivalent fraction of both fractional numbers with denominator 36
  2. For the 1st fraction, since 18 × 2 = 36,
    70/18 = 70 × 2/18 × 2 = 140/36
  3. Likewise, for the 2nd fraction, since 12 × 3 = 36,
    42/12 = 42 × 3/12 × 3 = 126/36
  4. Add the two like fractions:
    140/36 + 126/36 = 140 + 126/36 = 266/36
  5. 266/36 simplified gives 133/18
  6. So, 70/18 + 42/12 = 133/18
    In mixed form: 77/18

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