7分之13
=7分之(7+6)
=1又7分之6
请点击下面的【选为满意回答】按钮.
猜你喜欢
- 1Where is John?Do you know?(合并句子)
- 2She always stands in the winds waiting for you back from school.
- 3people don't grow rice in the west of Japan 变为被动语
- 4证明：直线斜率大于零
- 5霍尔效应实验中将探头与磁场平行或者直接从磁场拿出来,电压仍然有示数是什么原因?
- 6在菱形ABCD中,EF分别在BC和CD边上,且△AEF是等边三角形,AE=AB,则角BAD的度数是 为什么CE=CF或角BAE=角DAF
- 7he always things of ---he can do more for the people
- 8为什么轮船从海里行驶到河里浮力不变?
- 9we looking forward to receiving your quotation.we look forward to your early reply.
- 10加工零件甲单独20天完成乙只要10天现在两人12天完成问乙需工作多少天后甲再加工才可完成任务用一元一次方