Answers

Add 90/80 and 80/50

1^st number: 1 10/80, 2^nd number: 1 30/50

90/80 + 80/50 is 109/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 50 is 400
   
   Next, find the equivalent fraction of both fractional numbers with denominator 400
2. For the 1st fraction, since 80 × 5 = 400,
   90/80 = 90 × 5/80 × 5 = 450/400
3. Likewise, for the 2nd fraction, since 50 × 8 = 400,
   80/50 = 80 × 8/50 × 8 = 640/400
4. Add the two like fractions:
   450/400 + 640/400 = 450 + 640/400 = 1090/400
5. 1090/400 simplified gives 109/40
6. So, 90/80 + 80/50 = 109/40
   In mixed form: 229/40

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