Answers

Add 28/56 and 84/45

1^st number: 28/56, 2^nd number: 1 39/45

28/56 + 84/45 is 71/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 45 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 56 × 45 = 2520,
   28/56 = 28 × 45/56 × 45 = 1260/2520
3. Likewise, for the 2nd fraction, since 45 × 56 = 2520,
   84/45 = 84 × 56/45 × 56 = 4704/2520
4. Add the two like fractions:
   1260/2520 + 4704/2520 = 1260 + 4704/2520 = 5964/2520
5. 5964/2520 simplified gives 71/30
6. So, 28/56 + 84/45 = 71/30
   In mixed form: 211/30

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