1\/2+1\/5=多少?求解
本题:1\/2=5\/10 1\/5=2\/10 1\/2+1\/5=5\/10+2\/10=7\/10
1\/2+1\/5等于多少?
1\/2+1\/5 =7\/10
1\/2+1\/5等于多少?
1\/2+1\/5= 5\/10+2\/10=7\/10 存疑请追问,满意请采纳
1\/2+1\/5=?
十分之七。
1\/2+1\/5=?
1\/2+1\/5 =5\/10+2\/10 =7\/10 答:答案等于7\/10。
1\/2+1\/5等于多少?
等于7\/10
1\/5+1\/2=
1\/5+1\/2 =2\/10+5\/10 =7\/10
1\/5+1\/2等于多少
回答:1\/5+1\/2=7\/10 6\/19×0.3=18\/190
1\/5加1\/2等于多少?1\/2减1\/3等于多少?1\/2加1\/3等于多少?
回答:1\/5+1\/2 =(2+5)\/10 =7\/10 1\/2-1\/3 =(3-2)\/6 =1\/6 1\/2+1\/3 =(3+2)\/6 =5\/6
1\/2+1\/5+1\/10+...计算过程是什么?
5\/1*2*3*4*5*6=1\/1*2*3*4*5-1\/1*2*3*4*5*6。6\/1*2*3*4*5*6*7=1\/1*2*3*4*5*6-1\/1*2*3*4*5*6*7。可以得到:1\/1*2+2\/1*2*3+3\/1*2*3*4+4\/1*2*3*4*5+5\/1*2*3*4*5*6+6\/1*2*3*4*5*6*7 =1-1\/1*2+1\/1*2-1\/1*2*3+1\/1*2*3-...