Answers

Add 45/42 and 21/56

1^st number: 1 3/42, 2^nd number: 21/56

45/42 + 21/56 is 81/56.

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,
   45/42 = 45 × 4/42 × 4 = 180/168
3. Likewise, for the 2nd fraction, since 56 × 3 = 168,
   21/56 = 21 × 3/56 × 3 = 63/168
4. Add the two like fractions:
   180/168 + 63/168 = 180 + 63/168 = 243/168
5. 243/168 simplified gives 81/56
6. So, 45/42 + 21/56 = 81/56
   In mixed form: 125/56

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