What is an improper fracation?

How is the number pronounced 1600000000? What is the largest even number less than 500000 that can be formed using each of the digits 5 6 0 1 3 and 9 only once? Is 0 over 3 an irrational number? How in standard form do you write thirteen thousand forty-one and six ten thousandths? Is an ace in cards considered a 1 or 14? What is the divisor of 7? What is 2 and 7 over 100 as a percentage? What us 80 percent of 350? How many spaces are on a cheackboard? What 1 over 3 in percentages? Why are there so many units for time? Can two wavefront ever cross each other? How are addition and subtraction the same? How many 60x60 cm tiles are needed in a 25 sq meter floor area? What day of the week did the 31 of July 1953 fall on? What is 75.25 converted into a decimal? How many three letter palindromes are there with a consonant on each end and a vowel in the center? How many eighths are in 3.5? How do you convert diopter into metres? Is the word sometimes used in the bible?