Answers

Add 42/27 and 18/98

1^st number: 1 15/27, 2^nd number: 18/98

42/27 + 18/98 is 767/441.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 98 is 2646
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2646
2. For the 1st fraction, since 27 × 98 = 2646,
   42/27 = 42 × 98/27 × 98 = 4116/2646
3. Likewise, for the 2nd fraction, since 98 × 27 = 2646,
   18/98 = 18 × 27/98 × 27 = 486/2646
4. Add the two like fractions:
   4116/2646 + 486/2646 = 4116 + 486/2646 = 4602/2646
5. 4602/2646 simplified gives 767/441
6. So, 42/27 + 18/98 = 767/441
   In mixed form: 1326/441

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