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Add 70/42 and 45/4

1st number: 1 28/42, 2nd number: 11 1/4

70/42 + 45/4 is 155/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 4 is 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 4 × 21 = 84,
    45/4 = 45 × 21/4 × 21 = 945/84
  4. Add the two fractions:
    140/84 + 945/84 = 140 + 945/84 = 1085/84
  5. After reducing the fraction, the answer is 155/12
  6. In mixed form: 1211/12

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