A ratio compares the frequency of one value for a variable with another value for the variable. The first value identified in a ratio must be to the left of the colon (:) and the second value must be to the right of the colon (1st value : 2nd value).
The Canadian two-dollar coin, commonly called the toonie, is the most valuable of the frequently used Canadian coins. It was introduced on February 19, 1996, by Public Works minister Diane Marleau.
Some of the most significant recent developments in Canadian currency were the withdrawal of the $1, $2, and $1,000 notes in 1989, 1996, and 2000 respectively. The $1 and $2 denominations have been replaced with coins, colloquially referred to as the  loonie  and  toonie  respectively.he third series of banknotes of the Canadian dollar issued by the Bank of Canada was the 1954 series. The banknotes were designed in 1952 following the accession of Elizabeth II to the throne after the death of her father George VI.