Hello!
The formula for finding area is l × w
If the area is 19 ½ inches and it was 3 ¼ inches wide, then the length will be 19 ½ ÷ 3 ¼ (Area ÷ Width)
[tex]19 \frac{1}{2} \div 3 \frac{1}{4} [/tex]
Change both to improper fraction
[tex]19 \frac{1}{2} = \frac{39}{2} [/tex]
[tex]3 \frac{1}{4} = \frac{13}{4} [/tex]
[tex] \frac{39}{2} \div \frac{13}{4} [/tex]
Keep 39/2
Change ÷ to ×
Flip 13/4 = 4/13
[tex] \frac{39}{2} \times \frac{4}{13} = \frac{156}{26} = 6[/tex]
[tex]\framebox {The length of the ribbon is 6 inches}[/tex]
