
17/54×31+17×23/54解题步骤?
2个回答
展开全部
解:17/54×31+17×23/54等于( 17 )
∵已知需求出17/54×31+17×23/54等于多少
X × Y + X × Z = X × (Y + Z)
∴17/54 × 31 + 17 × 23/54
= 17/54 × 31 + 17 × 1/54 × 23
= 17/54 × 31 + 17/54 × 23
= 17/54 × ( 31 + 23)
= 17/54 × 54
= 17
答:17/54×31+17×23/54等于17
∵已知需求出17/54×31+17×23/54等于多少
X × Y + X × Z = X × (Y + Z)
∴17/54 × 31 + 17 × 23/54
= 17/54 × 31 + 17 × 1/54 × 23
= 17/54 × 31 + 17/54 × 23
= 17/54 × ( 31 + 23)
= 17/54 × 54
= 17
答:17/54×31+17×23/54等于17
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询