Answers

Add 72/56 and 84/45

1^st number: 1 16/56, 2^nd number: 1 39/45

72/56 + 84/45 is 331/105.

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,
   72/56 = 72 × 45/56 × 45 = 3240/2520
3. Likewise, for the 2nd fraction, since 45 × 56 = 2520,
   84/45 = 84 × 56/45 × 56 = 4704/2520
4. Add the two like fractions:
   3240/2520 + 4704/2520 = 3240 + 4704/2520 = 7944/2520
5. 7944/2520 simplified gives 331/105
6. So, 72/56 + 84/45 = 331/105
   In mixed form: 316/105

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