what are ratios ?
Ratios are a way of comparing numbers. Ratios are very similar to fractions because they are both comparing numbers. Also you could say that 30:70 = 3:7 = 3/7.
ratios are writen like this _____:_____
ratios
Lets say the first gear has 20 bars and the second has 50 bars. it would be written as 20:50 or 2:5 or 2/5 or 0.4.