Let a, b, and x be positive integers. suppose a and b are both divisors of x, and that gcd(a, b) = 1. prove that ab is a divisor of x.

Rounding decimals is very similar to rounding other numbers. if the hundredths and thousandths places of a decimal is forty-nine or less, they are dropped and the tenths place does not change. for example, rounding 0.843 to the nearest tenth would give 0.8. , your welcome !