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標題:

比例數值是多少？（新）

發問:

1/50+1/55+1/60+1/65=3013/42900 我想問3013/42900是怎樣計算出來的。（請詳細一些。要中文。非常謝謝） 更新: 大哥，我還是不明白，可以再詳細些嗎？

最佳解答:

1/50 + 1/55 + 1/60 + 1/65 = 1x55x60x65/50x55x60x65 + 1x50x60x65/50x55x60x65 + 1x50x55x65/50x55x60x65 + 1x50x55x60/50x55x60x65 = 214500/10725000 + 195000/10725000 + 178750/10725000 + 165000/10725000 = 753250/1072500 = 3013x250/42900x250 = 3013/42900

其他解答:

It is easy. First,you should calculate it with calculater.Then,you push the button which is under Prog(ab/c).Its function is changed to decimal from fraction. 2011-01-09 23:15:15 補充： I guess that you are studying in secondary school.You must have a calculater.|||||其實在計算這類的題目時,先會將彼此的分式通分母,在化作同一分母之後,互常作加減運算就能得出答案了. 希望幫到你:) 2011-01-09 22:04:51 補充： 當然這些較繁瑣的運算用計算機就能輕易解決了!6CC7293C79127CE5