SOLUTION: Lerato's mom uses 1/4kg of cheese to make snackwiches. his dad puts 1/5kg of cheese on the childrsn's sandwiches for school and he eats 1/20kg of cheese while making the sandwiches

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: Lerato's mom uses 1/4kg of cheese to make snackwiches. his dad puts 1/5kg of cheese on the childrsn's sandwiches for school and he eats 1/20kg of cheese while making the sandwiches      Log On


   



Question 569637: Lerato's mom uses 1/4kg of cheese to make snackwiches. his dad puts 1/5kg of cheese on the childrsn's sandwiches for school and he eats 1/20kg of cheese while making the sandwiches. what fraction of the kilogram of cheese is left?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+1+-+1%2F4+-+1%2F5+-+1%2F20+ kg left
LCD is +20+
+20%2F20+-+5%2F20+-+4%2F20+-+1%2F20+
+%28+20+-+10+%29+%2F+20+
+10%2F20+=+1%2F2+
1/2 kg of cheese is left