Answer:
.3078542 -----> 5,000,000
.0372 ------> 2,500
.26319 ------> 100,000
Step-by-step explanation:

Cannot reduce, it is already in simplest form. You can convert it to a decimal though, 0.671875
48/7 + 6/7 if your having any other trouble let me no
Cherry pie is $ C.
Pumpkin pie is $ P.
C + 9P =60 -------> C=60 - 9P
11C+4P = 90
11(60 - 9P) +4P=90
660 - 99P + 4P = 90
-95P = -570
P =570/95 = 6
P=6
C=60-9*P=60 - 9*6= 60-54=6
C=6
Answer: 1 cherry pie -$6, 1 pumpkin pie - $6.
Check:
11C+4P = 90 , 11*6 +4*6 =90, 66+24=90, 90=90 True
A ratio is a fraction which is technically a division problem.