Answers

Add 30/20 and 54/28

1^st number: 1 10/20, 2^nd number: 1 26/28

30/20 + 54/28 is 24/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 28 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 20 × 7 = 140,
   30/20 = 30 × 7/20 × 7 = 210/140
3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
   54/28 = 54 × 5/28 × 5 = 270/140
4. Add the two like fractions:
   210/140 + 270/140 = 210 + 270/140 = 480/140
5. 480/140 simplified gives 24/7
6. So, 30/20 + 54/28 = 24/7
   In mixed form: 33/7

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