Answers

Add 90/50 and 72/80

1^st number: 1 40/50, 2^nd number: 72/80

90/50 + 72/80 is 27/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 80 is 400
   
   Next, find the equivalent fraction of both fractional numbers with denominator 400
2. For the 1st fraction, since 50 × 8 = 400,
   90/50 = 90 × 8/50 × 8 = 720/400
3. Likewise, for the 2nd fraction, since 80 × 5 = 400,
   72/80 = 72 × 5/80 × 5 = 360/400
4. Add the two like fractions:
   720/400 + 360/400 = 720 + 360/400 = 1080/400
5. 1080/400 simplified gives 27/10
6. So, 90/50 + 72/80 = 27/10
   In mixed form: 27/10

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