Answers

Add 28/56 and 81/30

1^st number: 28/56, 2^nd number: 2 21/30

28/56 + 81/30 is 16/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 30 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 56 × 15 = 840,
   28/56 = 28 × 15/56 × 15 = 420/840
3. Likewise, for the 2nd fraction, since 30 × 28 = 840,
   81/30 = 81 × 28/30 × 28 = 2268/840
4. Add the two like fractions:
   420/840 + 2268/840 = 420 + 2268/840 = 2688/840
5. 2688/840 simplified gives 16/5
6. So, 28/56 + 81/30 = 16/5
   In mixed form: 31/5

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