| A | B |
|---|
| compatible numbers | numbers that are easy to compute mentally and can be used to estimate |
| like fractions | fractions that have the same denominator |
| multiplicative inverse | the prodtwo numbers whose product is 1. Ex. - inverse of 2/3 is 3/2. |
| reciprocal | the multiplicative inverse of a number |
| unlike fractions | fractions with different denominators |
| cross products | in a proportion, the numerator of one ratio and the denominator of the other ratio |
| equivalent ratios | fractions that have the same value. Ex. 2/3 and 4/6 |
| inverse proportion | when the product of two variables is a constant |
| rate of change | a ratio that shows a change in one quantity with respect to a change in another quantity |
| rate | a ratio that compares two quantities with different kinds of units |
