Answers

Add 90/28 and 40/27

1^st number: 3 6/28, 2^nd number: 1 13/27

90/28 + 40/27 is 1775/378.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 27 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 28 × 27 = 756,
   90/28 = 90 × 27/28 × 27 = 2430/756
3. Likewise, for the 2nd fraction, since 27 × 28 = 756,
   40/27 = 40 × 28/27 × 28 = 1120/756
4. Add the two like fractions:
   2430/756 + 1120/756 = 2430 + 1120/756 = 3550/756
5. 3550/756 simplified gives 1775/378
6. So, 90/28 + 40/27 = 1775/378
   In mixed form: 4263/378

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