First make the denominators of the fractions the same by multiplying.
[tex] \frac{2}{3} [/tex] × [tex] \frac{2}{2} [/tex]
=[tex] \frac{4}{6} [/tex]
Now we just need to add the fractions together
[tex] \frac{5}{6} + \frac{4}{6} [/tex]
= [tex]\frac{9}{6} [/tex]
9/6 would be the answer, but it can be simplified further, then converted into decimal form.
[tex] \frac{9}{6} [/tex] ÷ [tex] \frac{3}{3} [/tex]
=[tex] \frac{3}{2} [/tex]
=1.5 yards
Your final answer is 1.5 yards of ribbon are needed.