Answers

Add 90/45 and 6/80

1^st number: 2 0/45, 2^nd number: 6/80

90/45 + 6/80 is 83/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 80 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 45 × 16 = 720,
   90/45 = 90 × 16/45 × 16 = 1440/720
3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
   6/80 = 6 × 9/80 × 9 = 54/720
4. Add the two like fractions:
   1440/720 + 54/720 = 1440 + 54/720 = 1494/720
5. 1494/720 simplified gives 83/40
6. So, 90/45 + 6/80 = 83/40
   In mixed form: 23/40

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