How many rolls of ribbon did he use in all?
Understand the Problem
The question is asking how much ribbon Justin has used in total after using specific fractions of two rolls. We need to calculate the total by adding the fractions used.
Answer
Justin used $\frac{3}{5}$ rolls of ribbon.
Answer for screen readers
Justin used a total of $\frac{3}{5}$ rolls of ribbon.
Steps to Solve
- Identify the fractions used Justin used two fractions of ribbon:
- $\frac{1}{5}$ of one roll for a parcel
- $\frac{2}{5}$ of another roll for a present
-
Add the fractions used To find the total ribbon used, add the fractions: $$ \text{Total used} = \frac{1}{5} + \frac{2}{5} $$
-
Calculate the total Since the denominators are the same, add the numerators: $$ \frac{1}{5} + \frac{2}{5} = \frac{1+2}{5} = \frac{3}{5} $$
-
Convert to rolls used Justin used a total of $\frac{3}{5}$ of a roll of ribbon.
Justin used a total of $\frac{3}{5}$ rolls of ribbon.
More Information
Justin had a total of 3 rolls of ribbon, and after using $\frac{3}{5}$ of a roll, he has plenty of ribbon left. This problem illustrates how to add fractions with the same denominator.
Tips
- Forgetting to add fractions with the same denominator correctly.
- Miscalculating the total when converting fractions to rolls.
AI-generated content may contain errors. Please verify critical information
