括号1\/3+1\/7,括号乘8\/5?
你问:括号1\/3+1\/7,括号乘8\/5?(1\/3+1\/7)×8\/5 =(7\/21+3\/21)×8\/5 =10\/21×8\/5 =16\/21
1\/2+括号1-7\/12×8\/7能简便就简便算
1\/2+括号1-7\/12×8\/7能简便就简便算1\/2+(1-7\/12)×8\/7=1\/2+5\/12×8\/7=1\/2+10\/21=41\/42 本回答由网友推荐 已赞过 已踩过< 你对这个回答的评价是? 评论 收起 其他类似问题2015-09-15 (1\/2+1\/12-7\/12)x5\/8用简便方法计算 1 2018-06-21 7\/12÷括号1\/2+2\/3括号乘2\/5能简算...
括号里3-2\/3+1\/6括起来乘8\/5怎么做
=(7\/3+1\/6)x8\/5 =(14\/6+1\/6)x8\/5 =15\/6x8\/5 =4
3\/7+3\/8( )4\/9+3\/7 5\/9+1\/12( )1\/15+5\/9 1\/7+1\/6( )5\/6-1\/3 1-7\/1...
小于,大于,小于,大于
1\/8×中括号1\/2÷括号3\/5×10\/9括号中括号
解如图。
2\/3减3\/7加括号里1\/3加3\/7括起来,用简便方法记算
括号3\/7×1\/41+1\/41×2\/9括起来乘以63用简便方法算 (3\/7×1\/41+1\/41×2\/9)x63 =1\/41x(3\/7+2\/9)x63 =1\/41x(3\/7x63+2\/9x63) =1\/41x(27+14) =1\/41x41 =1 1\/3÷括号里2\/3-2\/5括起来乘3\/5怎么简便 解: 1\/3÷(2\/3-2\/5)*3\/5 =1\/3÷(...
1÷括号3\/4+1\/3括号乘以5\/8等于多少用简便方法计算?
1÷(3\/4+1\/3)×5\/8 =1÷(9\/12+4\/12)×5\/8 =1÷13\/12×5\/8 =1×12\/13×5\/8 =15\/26
在括号里填上合适的自然数,使等式成立3\/5=1\/( )+1\/( )
1\/5=【1×(1+5)\/5×(1+5)】 =1\/30+5\/30 =1\/30+1\/6 在括号里填上不同的自然数,使等式成立。1\/7=1\/( )+1\/( ) 1\/7=8\/56 =1\/56+7\/56 =1\/56+1\/8 所以 1\/7=1\/56+1\/8 在括号里填上合适的数,使不等式成立,1\/8<1\/()<1\/3 1\/8<1\/(4...
15×括号50%+3分之一括号除以八分之五简便运算
解:原式=15x(50%+1\/3)\/(5\/8)=15x(3\/6+2\/6)\/(5\/8)=15x(5\/6)\/(5\/8)=15x(4\/3)=20
1\/17+括号5\/8+1\/7括号乘以八怎么简便计算?
1\/17+括号5\/8+1\/7括号乘以八怎么简便计算?1\/17+括号5\/8+1\/7括号乘以八 =1\/17+(5\/8+1\/7)*8 =1\/17+5\/8*8+1\/7*8 =1\/17+5+1+1\/7 =6+(1\/7+1\/17)=6+24\/119 =6又24\/119