7th grade math
posted by chris on .
find a ratio equivalent to the ratio 7 over 9 then use the ratio to write a proportion

7 : 9 = 14 : 18

78=67

15/w=2/5

What is ratio
question :what is the ratio of R.S 100 and R.S 10?Express your answer in simplest form 
5h over 12b=

49/63