3. Volunteers for a fair prepared [tex]\( 12 \frac{1}{2} \)[/tex] liters of smoothies. At the end of the day, they had [tex]\( 2 \frac{5}{8} \)[/tex] liters remaining. How many liters of smoothies were sold?



Answer :

To find out how many liters of smoothies were sold, follow these steps:

1. Convert the mixed fractions to improper fractions for easier calculation:

- Initial amount of smoothies: [tex]\( 12 \frac{1}{2} \)[/tex]
- Convert [tex]\( 12 \frac{1}{2} \)[/tex] to an improper fraction. An improper fraction combines the whole number with the fractional part:
[tex]\[ 12 \frac{1}{2} = 12 + \frac{1}{2} = \frac{24}{2} + \frac{1}{2} = \frac{25}{2} \][/tex]

- Remaining amount of smoothies: [tex]\( 2 \frac{5}{8} \)[/tex]
- Convert [tex]\( 2 \frac{5}{8} \)[/tex] to an improper fraction:
[tex]\[ 2 \frac{5}{8} = 2 + \frac{5}{8} = \frac{16}{8} + \frac{5}{8} = \frac{21}{8} \][/tex]

2. Convert these improper fractions to decimal form for straightforward subtraction:

- Initial smoothies in decimal:
[tex]\[ \frac{25}{2} = 12.5 \][/tex]
- Remaining smoothies in decimal:
[tex]\[ \frac{21}{8} = 2.625 \][/tex]

3. Calculate the amount of smoothies sold:

- Subtract the remaining amount from the initial amount:
[tex]\[ 12.5 - 2.625 = 9.875 \][/tex]

4. Conclusion:

Therefore, the number of liters of smoothies that were sold is:
[tex]\[ 9.875 \, \text{liters} \][/tex]