We have to find how many purple rectangles does Olivia need for 3 scarves. We know that each scarf will have 5 rectangles and 2/5 of the rectangles will be purple: 2/5 * 5 = 2. It means that each scarf will have 2 purple rectangles. And for 3 scarves : 3 * 2 = 6. Answer: She needs <span>6 purple rectangles.</span>
It is 77/10 because you have to multiply the whole number by the denominator and that gives you 70. Then you add the value of the numerator to 70, which is 77. so the answer is 77/10