Answer:
3:5
Step-by-step explanation:
If 3/8 of the sweets are red, then the remaining 5/8 must be blue.
Next, to find the ratio of red sweets to blue sweets, compare the two proportions. This gives [tex]\frac{3}{8}:\frac{5}{8}[/tex]
Multiply both sides of the proportion by 8 to get nicer looking numbers and you get a ratio of 3:5