Answers

Add 84/56 and 90/45

1^st number: 1 28/56, 2^nd number: 2 0/45

84/56 + 90/45 is 7/2.

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,
   84/56 = 84 × 45/56 × 45 = 3780/2520
3. Likewise, for the 2nd fraction, since 45 × 56 = 2520,
   90/45 = 90 × 56/45 × 56 = 5040/2520
4. Add the two like fractions:
   3780/2520 + 5040/2520 = 3780 + 5040/2520 = 8820/2520
5. 8820/2520 simplified gives 7/2
6. So, 84/56 + 90/45 = 7/2
   In mixed form: 31/2

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