14/5÷括号5/7+1/2括号加3/7用简便方法计算
14/5÷括号5/7+1/2括号加3/7用简便方法计算
14/5÷括号5/7+1/2括号加3/7用简便方法计算
14/5÷括号5/7+1/2括号加3/7
=14/5÷(5/7+1/2)+3/7
=14/5÷(10/14+7/14)+3/7
=14/5*14/17+3/7
=196/75+3/7
=
数据有问题吧,计算量这么大
7/18+括号3/7+1/9括号简便方法计算
7/18+括号3/7+1/9括号简便方法计算
=7/18+2/18+3/7
=1/2+3/7
=7/14+6/14
=13/14
6/7+1/6-括号3/8-1/7括住用简便方法计算
6/7+1/6-(3/8-1/7)
=6/7+1/6-3/8+1/7
=(6/7+1/7)-(3/8-1/6)
=1-5/24
=19/244
5/12-括号5/12-1/10括号用简便方法计算
5/12-(5/12-1/10)
=5/12-5/12+1/10
=1/10
括号6-7/2×5/8括号除以2/5的简便方法计算
(6-7/2×5/8)÷2/5
=(6-35/16)x5/2
=6x5/2-35/16x5/2
=15-175/32
=305/32
简算:5/7减括号2/7+1/5括号。
5/7减括号2/7+1/5括号
=5/7-2/7-1/5
=3/7-1/5
=8/35
括号1/7 5/14括回除以5/14简便计算
括号1/7 5/14括回除以5/14简便计算
括号1/7 5/14括回除以5/14
=(2/14+5/14)÷5/14
=1/2*14/5
=7/5
直接计算
一除以括号7/5乘于2/9加7/9除以5/7括号用简便方法计算
1÷(7/5×2/9+7/9÷5/7)
=1÷(7/5×2/9+7/9×7/5)
=1÷【7/5×(2/9+7/9)】
=1÷7/5
=5/7
5/7+括号3/4-5/7括号简便运算
5/7+(3/4-5/7)
=5/7-5/7+3/4
=0+3/4
=3/4
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25/28-括号2/7 5/14括号简便方法怎么算
25/28-(2/7 +5/14)
=25/28-2/7- 5/14
=25/28-8/28-5/14
=17/28-10/28
=7/28
=1/4