Use the least common denominator to enter an equivalent fraction for each fraction 1/2,1/7

The least common denominator of the fraction is __

1/2=

1/7=

help please due in 20 mins

Pranav and molly are selling pies for a school fundraiser. customers can buy blueberry pies and pumpkin pies. pranav sold 6 blueberry pies and 4 pumpkin pies for a total of $106. molly sold 6 blueberry pies and 3 pumpkin pies for a total of $90. find the cost of each of one blueberry pie and one pumpkin pie