Answers

Add 81/56 and 84/45

1^st number: 1 25/56, 2^nd number: 1 39/45

81/56 + 84/45 is 2783/840.

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,
   81/56 = 81 × 45/56 × 45 = 3645/2520
3. Likewise, for the 2nd fraction, since 45 × 56 = 2520,
   84/45 = 84 × 56/45 × 56 = 4704/2520
4. Add the two like fractions:
   3645/2520 + 4704/2520 = 3645 + 4704/2520 = 8349/2520
5. 8349/2520 simplified gives 2783/840
6. So, 81/56 + 84/45 = 2783/840
   In mixed form: 3263/840

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