<human>:  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?
<bot>: 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