Please help it’s urgent

Question

Joana picked 70 flowers — just because! Two-fifths of the flowers are red. One-tenth of the flowers are yellow. The rest of the flowers are white. What is the ratio of red flowers to white flowers? (Write your answer as a fraction in lowest terms.)

Answer 1

Red/White = 4/5

R = 2/5

Y = 1/10

W = 1 - 2/5 -1/10 = 1/2

R/W = 2/5/1/2 = 2/5 x 2/1 = 4/5