If milk costs $1.97 per gallon and a bread recipe uses 6 fl. ounces, how much do those 6 fl. ounces cost?

According to the question we can get,
128 ounce milk costs $1.97              (Note:1gallon fluid=128ounce)
6     ounce bread costs=1.97/128 multiples 6
                                       =2.56x10^-3
HOPEFULLLY its works