Answer:27:45
Step-by-step explanation:Ok, so you need to...
Add the numbers on both sides of the ration symbol
3+5 = 8
Then divide 72 by that number
72/8 = 9
Then multiply 9 by the original numbers on each sides of the ratio...
9x3 : 9x5
Which equals...
27:45
27:45
step 1: add the two sides of the ratio 3+5=8
step 2: divide 72 by 8 72/8=9
step 3: solve either side of the ratio by multiplying by answer to step 2 so 9*3=27 and 5*9=45
step 4: check answer by adding the two sides of the ratio 27 + 45 = 72
