Answers

Add 90/28 and 40/8

1^st number: 3 6/28, 2^nd number: 5 0/8

90/28 + 40/8 is 115/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 8 is 56
   
   Next, find the equivalent fraction of both fractional numbers with denominator 56
2. For the 1st fraction, since 28 × 2 = 56,
   90/28 = 90 × 2/28 × 2 = 180/56
3. Likewise, for the 2nd fraction, since 8 × 7 = 56,
   40/8 = 40 × 7/8 × 7 = 280/56
4. Add the two like fractions:
   180/56 + 280/56 = 180 + 280/56 = 460/56
5. 460/56 simplified gives 115/14
6. So, 90/28 + 40/8 = 115/14
   In mixed form: 83/14

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