Answers

Add 48/56 and 45/12

1^st number: 48/56, 2^nd number: 3 9/12

48/56 + 45/12 is 129/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 12 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 56 × 3 = 168,
   48/56 = 48 × 3/56 × 3 = 144/168
3. Likewise, for the 2nd fraction, since 12 × 14 = 168,
   45/12 = 45 × 14/12 × 14 = 630/168
4. Add the two like fractions:
   144/168 + 630/168 = 144 + 630/168 = 774/168
5. 774/168 simplified gives 129/28
6. So, 48/56 + 45/12 = 129/28
   In mixed form: 417/28

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