Answers

Add 1/42 and 98/72

1^st number: 1/42, 2^nd number: 1 26/72

1/42 + 98/72 is 349/252.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 42 × 12 = 504,
   1/42 = 1 × 12/42 × 12 = 12/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   98/72 = 98 × 7/72 × 7 = 686/504
4. Add the two like fractions:
   12/504 + 686/504 = 12 + 686/504 = 698/504
5. 698/504 simplified gives 349/252
6. So, 1/42 + 98/72 = 349/252
   In mixed form: 197/252

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