数学计算(-1/63)/(1/9-2/7+2/3)要有过程啊,
2个回答
(-1/63)/(1/9-2/7+2/3)
=(-1/63)/(7/63-2*9/63+2*21/63)
=(-1/63)/(31/63)
=-1/31
相关问题
计算(-1/63)除以(1/9_2/7+2/3_1/14)
用简便方法计算:-1/63除以(1/9-2/7+2/3-1/14)
要尽快答得数学题1.1/2+1/3+1/7+1/15+1/31+1/63=( )2.1.4-4/9-2/5+2/3=(
脱式计算:1.(1/7-1/9)×63-2/3 2.8/15×[3/4+(7/16-1/4)]
-1/63/(3/14-2/9+1/7-1/3)
-63/1÷(9/1-7/2+3/2-14/1)
(1/63)除以(1/9-2/7+2/3-1/14)=?
1.2乘0.7+5.63=?要脱式计算!还有好多数学题!
(1/7-1/9+1/21) /1/63+(-2)^3
(﹣1/63)÷1/9-(﹣1/63)÷2/7+(﹣1/63)÷2/3-(﹣1/63)÷4/21 简便算法