Twelve ounces is equivalent to one and one-half cups. There are 8 ounces in each cup, so when people need to convert ounces to cups, they can do so by dividing the total number of ounces by 8.
When people try to convert cups into ounces, they should multiply the number of cups by 8 to obtain the equivalent volume in ounces. For example, if someone is trying to find out how many ounces are in 10 cups, they would multiply 10 cups by 8, yielding 80 ounces. The same principle works for decimals. For example, 1.2 cups is equal to 9.6 ounces.