Answer:
30 : 50 : 70
Step-by-step explanation:
We need to get the total of the ratios first.
3 + 5 + 7 = 15
Then, divide the number by the "total" of the ratios.
150/15=10
Last, multiply the quotient to each of the "terms" in the ratio.
3*10 : 5*10 : 7*10
30 : 50 : 70
