Answers

Add 28/40 and 54/12

1^st number: 28/40, 2^nd number: 4 6/12

28/40 + 54/12 is 26/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 12 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 12 × 10 = 120,
   54/12 = 54 × 10/12 × 10 = 540/120
4. Add the two like fractions:
   84/120 + 540/120 = 84 + 540/120 = 624/120
5. 624/120 simplified gives 26/5
6. So, 28/40 + 54/12 = 26/5
   In mixed form: 51/5

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