Answers

Add 84/4 and 42/98

1^st number: 21 0/4, 2^nd number: 42/98

84/4 + 42/98 is 150/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 98 is 196
   
   Next, find the equivalent fraction of both fractional numbers with denominator 196
2. For the 1st fraction, since 4 × 49 = 196,
   84/4 = 84 × 49/4 × 49 = 4116/196
3. Likewise, for the 2nd fraction, since 98 × 2 = 196,
   42/98 = 42 × 2/98 × 2 = 84/196
4. Add the two like fractions:
   4116/196 + 84/196 = 4116 + 84/196 = 4200/196
5. 4200/196 simplified gives 150/7
6. So, 84/4 + 42/98 = 150/7
   In mixed form: 213/7

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