Answers

Add 98/56 and 30/21

1^st number: 1 42/56, 2^nd number: 1 9/21

98/56 + 30/21 is 89/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 21 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 56 × 3 = 168,
   98/56 = 98 × 3/56 × 3 = 294/168
3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
   30/21 = 30 × 8/21 × 8 = 240/168
4. Add the two like fractions:
   294/168 + 240/168 = 294 + 240/168 = 534/168
5. 534/168 simplified gives 89/28
6. So, 98/56 + 30/21 = 89/28
   In mixed form: 35/28

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