Answers

Add 70/42 and 18/49

1^st number: 1 28/42, 2^nd number: 18/49

70/42 + 18/49 is 299/147.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 49 is 294
   
   Next, find the equivalent fraction of both fractional numbers with denominator 294
2. For the 1st fraction, since 42 × 7 = 294,
   70/42 = 70 × 7/42 × 7 = 490/294
3. Likewise, for the 2nd fraction, since 49 × 6 = 294,
   18/49 = 18 × 6/49 × 6 = 108/294
4. Add the two like fractions:
   490/294 + 108/294 = 490 + 108/294 = 598/294
5. 598/294 simplified gives 299/147
6. So, 70/42 + 18/49 = 299/147
   In mixed form: 25/147

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