Sophia ate 1/6 of her pie and she put the rest on the fridge. If the pie left in the fridge weighs 1200 grams, how many grams did Sophia eat?
How many pieces are left in the fridge? ** If Sophia ate 1/6 of the pie, then 6/6 - 1/6 = 5/6 is left in the fridge.
Define a variable ** Let x be the pie's original weight.
How many grams does the pie currently weigh? ** The current weight of the pie can be described by 5x/6=1200 grams
How many grams does the pie weigh? ** So, 5x=7200.
How many grams was the pie originally? ** And, the original weight is x = <<1440=1440>>1440 grams.
How many grams did Sophia eat? ** So, Sophia ate 1440 grams original - 1200 grams after= <<1440-1200=240>>240 grams of pie.
#### 240