Answers

Add 28/14 and 90/45

1^st number: 2 0/14, 2^nd number: 2 0/45

28/14 + 90/45 is 4/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 45 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 14 × 45 = 630,
   28/14 = 28 × 45/14 × 45 = 1260/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   90/45 = 90 × 14/45 × 14 = 1260/630
4. Add the two like fractions:
   1260/630 + 1260/630 = 1260 + 1260/630 = 2520/630
5. 2520/630 simplified gives 4/1
6. So, 28/14 + 90/45 = 4/1

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