Answers

Add 3/42 and 12/56

3/42 + 12/56 is 2/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 56 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 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,
   12/56 = 12 × 3/56 × 3 = 36/168
4. Add the two like fractions:
   12/168 + 36/168 = 12 + 36/168 = 48/168
5. 48/168 simplified gives 2/7
6. So, 3/42 + 12/56 = 2/7

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