Question

Joyce baked a cake using 2 3/4 cups of brown sugar and 1 3/4 cups of powdered sugar. How many cups of sugar did she use in her cake? (Answers above in photo)

Answer 1

So she has used two kinds of sugar, brown and powdered.

She used
`2 (3)/(4)` cups of brown sugar and
`1 (3)/(4)` cups of powdered sugar: we need to add the two numbers:


`2 (3)/(4)`+
`1 (3)/(4)`= 2+1+
`(3)/(4)+ (3)/(4)`=3
`(6)/(4)=3+1+ (2)/(4) =4 (2)/(4)=4 (1)/(2)=4.5`

so the correct answer is 4.5