Answers

Add 28/42 and 98/45

1^st number: 28/42, 2^nd number: 2 8/45

28/42 + 98/45 is 128/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 45 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 42 × 15 = 630,
   28/42 = 28 × 15/42 × 15 = 420/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   98/45 = 98 × 14/45 × 14 = 1372/630
4. Add the two like fractions:
   420/630 + 1372/630 = 420 + 1372/630 = 1792/630
5. 1792/630 simplified gives 128/45
6. So, 28/42 + 98/45 = 128/45
   In mixed form: 238/45

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