What did the division sign mean when it was first made?

Special cases of the product of trinomial and binomial? What is a involuntary matrix? What is date of 09-25-1990 in roman numerals? How many handshakes if 6 people shakes hands with every other person in the room? What is very inverse relay? What is Higuchi equation-? How do you solve this equation 4a-2.1 equals 9a plus 5.4? What numbers go into 105? What is the perimeter of a right angle triangle that has an hypotenuse of 16.25 cm and an area of 46.875 square cm? What is the area of 3 miles by 12 miles? How do you find third point of line out of 2 points? What is the name for a shape that is both a rectangle and a rhombus? What is simplest form of 30 over 40? What prime numbers less than 60 are divided by 7 and give the remainder 3? 2 tons plus 10 pounds equals? What times 32 equals 313? What is 2.7 percent of 14.77? How many hours are in 111 minutes? If you want to find the area of a triangle does it matter which side you use as the base? Is 4.3219847137840923 rational or irrational?