Two numbers whose product is 1. (ex. 2/3 x 3/2)
Another name for a multiplicative inverse.
The product of a number and a whole number. (ex. 3x1=3, 3x2=6, 3x3=9)
Multiples that are shared by two or more numbers. For example, some common multiples of 4 and 6 are 0, 12, and 24.
least common multiple (LCM)
The least o the nonzero common multiples ot two or more numbers. The LCM of 4 and 6 is 12.
least common denominator
The least common multiple of the denominators of two or more fractions.