Answer:
Brittany is sharing number of [tex]\frac{1}{15}[/tex]s with her sister = 6
Step-by-step explanation:
Let the shell collection of Brittany = x
She is giving [tex]\frac{2}{5}[/tex] of her shell collection to her sister.
Therefore, shells received by her sister = [tex]\frac{2x}{5}[/tex]
[tex]\frac{1}{15}[/tex]th of her shell collection = [tex]\frac{x}{15}[/tex]
Number of [tex]\frac{1}{15}[/tex]s her sister received = [tex]\frac{\text{Total shells received by Brittany's sister}}{\frac{1}{15}th \text{part of Brittany's shells}}[/tex]
= [tex]\frac{\frac{2x}{5}}{\frac{x}{15} }[/tex]
= [tex]\frac{2x}{5}\times \frac{15}{x}[/tex]
= 6
Therefore, number of [tex]\frac{1}{15}[/tex] received by her sister = 6
