Answer:
2---> 1/2
1/5 ----> 5
-4 ----> 1/-4
1 2/5 = 7/5 ----> 1/(7/5) = 5/7
Step-by-step explanation:
Red light is 15.1cm
yellow is 16.3cm
purple is 19.3cm
-Notice that dividing our numbers leaves no remainder:
1,620 ÷ 5 = 324 + 0
-1,620 has all the factors of the number 5