Question

8．單項(xiàng)式$\frac{3{x}^{2}{y}^{3}}{5}$的系數(shù)是$\frac{3}{5}$，次數(shù)是5．

Answer 1

分析 根據(jù)單項(xiàng)式中的數(shù)字因數(shù)叫做單項(xiàng)式的系數(shù)，一個(gè)單項(xiàng)式中所有字母的指數(shù)的和叫做單項(xiàng)式的次數(shù)可得答案．

解答 解：?jiǎn)雾?xiàng)式$\frac{3{x}^{2}{y}^{3}}{5}$的系數(shù)是$\frac{3}{5}$，次數(shù)是5，
故答案為：$\frac{3}{5}$；5．

點(diǎn)評(píng) 此題主要考查了單項(xiàng)式，關(guān)鍵是掌握單項(xiàng)式次數(shù)和系數(shù)的定義．