Answer:
The number of the more cups of sugar is 2 [tex]\frac{1}{5}[/tex] cups
Step-by-step explanation:
Let us solve it step by step
∵ Mrs.Reily wants to make 3 batches of chocolate crinkle cookies
∵ Each batch requires 2 cups of sugar
→ Multiply 2 by 3 to find the number of cups of sugar she will
need to make 3 batches
∴ The total number of cups of sugar = 2 × 3 = 6 cups
∴ She will need 6 cups of sugar to make 3 batches
∵ Mrs.Reilly only has 3 and 4/5 cups of sugar
→ Subtract it from the total number of cups of sugar
∴ The number of the more cups = 6 - [tex]3\frac{4}{5}[/tex]
→ Change 3 [tex]\frac{4}{5}[/tex] to an improper
∵ [tex]3\frac{4}{5}[/tex] = (3 × 5 + 4)/5
∴ [tex]3\frac{4}{5}[/tex] = [tex]\frac{19}{5}[/tex]
∴ The number of the more cups = 6 - [tex]\frac{19}{5}[/tex]
→ Make 6 as a fraction by multiplying up and down by 5
∴ The number of the more cups = [tex]\frac{30}{5}[/tex] - [tex]\frac{19}{5}[/tex]
∴ The number of the more cups = [tex]\frac{11}{5}[/tex]
→ Chang it to a mixed number
∵ 11 ÷ 5 = 2 R 1
∴ [tex]\frac{11}{5}=2 + \frac{1}{5}[/tex]
∴ The number of the more cups of sugar = 2 [tex]\frac{1}{5}[/tex] cups
