Calculate, the value of 3
1
8
− 2
1
2
giving your answer as a fraction.

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.

The year before the 10s so it was like when caveman were alive

Theres no drop down menu

20 percentage, you can also do it on a calculator.