The cheese pizza is cut into 12 slices and the pepperoni pizza is cut into 8 slices.  If Kate’s 6 friends each eat 6 cheese pizza slices and 4 pepperoni pizza slices, how many pizza pies does she need to buy?
Kate’s friends eat 6 x 6 = <<6*6=36>>36 cheese pizza slices.
Her friends eat 6 x 4 = <<6*4=24>>24 pepperoni pizza slices.
Kate needs to buy 36 / 12 = <<36/12=3>>3 cheese pizza pies.
She needs to buy 24 / 8 = <<24/8=3>>3 pepperoni pizza pies.
She needs to buy a total of 3 + 3 = <<3+3=6>>6 pizza pies.
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