Answers

Add 90/56 and 40/45

1^st number: 1 34/56, 2^nd number: 40/45

90/56 + 40/45 is 629/252.

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,
   90/56 = 90 × 45/56 × 45 = 4050/2520
3. Likewise, for the 2nd fraction, since 45 × 56 = 2520,
   40/45 = 40 × 56/45 × 56 = 2240/2520
4. Add the two like fractions:
   4050/2520 + 2240/2520 = 4050 + 2240/2520 = 6290/2520
5. 6290/2520 simplified gives 629/252
6. So, 90/56 + 40/45 = 629/252
   In mixed form: 2125/252

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