**TI83F* AppVariable file 04/07/08, 14:12” ƒMC205ƒnav F441BD13B950415AA7EB861D73925D5FMC205.MC2051  compatible numbers]compatible numbers:ÖTwo numbers that are easy to add, subtract, multiply, or divide mentally. like fractions:like fractions:ÖFractions that have the same denominator.Ö multiplicative inverse«multiplicative inverse:ÖThe number that when multiplied by a given number results in a product of one.ÖExample:ÖThe multiplicative inverse of 4 is 1/4 because 4 1/4 = 1.  reciprocal3reciprocal:ÖThe multiplicative inverse of a number. unlike fractions>unlike fractions:ÖFractions whose denominators are different.Ö ×