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 $2 \frac{3}{4}$ cups of brown sugar and  $1 \frac{3}{4}$ cups of powdered sugar: we need to add the two numbers:

$2 \frac{3}{4}$+$1 \frac{3}{4}$= 2+1+$\frac{3}{4}+ \frac{3}{4}$=3$\frac{6}{4}=3+1+ \frac{2}{4} =4 \frac{2}{4}=4 \frac{1}{2}=4.5$

so the correct answer is 4.5