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Add 3/42 and 45/56

3/42 + 45/56 is 7/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 56 is 168
  2. For the 1st fraction, since 42 × 4 = 168,
    3/42 = 3 × 4/42 × 4 = 12/168
  3. Likewise, for the 2nd fraction, since 56 × 3 = 168,
    45/56 = 45 × 3/56 × 3 = 135/168
  4. Add the two fractions:
    12/168 + 135/168 = 12 + 135/168 = 147/168
  5. After reducing the fraction, the answer is 7/8

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