Properties of ratios

Properties of ratios 1. Ratio has no units. Example: Ratio of 4m to 7m is written as 4:7 and not as 4m:7m. 2. Quantities of a ratio should be of the same unit In the above example both the numbers have same unit m 3. Each number of the ratio is called term. In the ratio 4:7, the numbers 4 and 7 are called as term. 4. Order of the terms in a ratio cannot be reversed Ratio we get by reversing the term of given ratio are not same The ratio 4:7 is not equal to ratio 7:4

Can the given quantity be expressed as a ratio? Information Explanation Ratio form 7 pens and 9 pens Count of pens-Numbers 7:9 3m and 45cm Different units – m,cm Cannot be expressed as a ratio 32ml and 41ml Same units - ml 32:41 Rs.8 and 50 paise Different units – Rs, paise Cannot be expressed as a ratio Rs.100 and Rs.55 Same units - Rs 100:55 2kg of onions and 3kg of tomatoes Same units – kg (Items can be different) 2:3

Try These Can the given information be represented as a ratio.Give reasons 15ml and 6ml 3km and 45cm 4apples and Rs.120 2litres of milk and 3litres of juices