Answers

Add 28/40 and 54/30

1^st number: 28/40, 2^nd number: 1 24/30

28/40 + 54/30 is 5/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 30 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 40 × 3 = 120,
   28/40 = 28 × 3/40 × 3 = 84/120
3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
   54/30 = 54 × 4/30 × 4 = 216/120
4. Add the two like fractions:
   84/120 + 216/120 = 84 + 216/120 = 300/120
5. 300/120 simplified gives 5/2
6. So, 28/40 + 54/30 = 5/2
   In mixed form: 21/2

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