Hello! To simplify the expression 9/7x(6/5-12/7), we follow the order of operations, which is parentheses first, then multiplication and division from left to right, and finally addition and subtraction from left to right.
First, in the parentheses, we simplify the expression: (6/5 - 12/7).
To simplify fractions, we need to find a common denominator. The least common multiple (LCM) of 5 and 7 is 35, so we can rewrite the expression as follows:
(6/5) - (12/7)
= (6/5)(7/7) - (12/7)(5/5)
= 42/35 - 60/35
Now that the fractions have the same denominator, we can subtract them:
= (42 - 60)/35
= -18/35
Now, we can substitute this result back into the original expression:
9/7x(-18/35)
Next, we perform the multiplication:
(9/7)(-18/35)
= (9*-18)/(7*35)
= -162/245
So, the simplified expression is -162/245.
“这些精彩的节目太有意思了。， 而最近，很多人已经在网上找了很多板栗去壳的方法，比如暴晒法、盐水浸泡法、削皮法等等方法，而这些方法我都不推荐，因为它们去壳的效率特别低，而且还会导致板栗生虫、变味、腐烂。
本文转自：人民网-山东频道 曾经荒山秃岭，而今绿水青山；，2008年，浙江文学馆项目被正式列入《浙江省推动文化大发展大繁荣的纲要（2008-2012）》。
今年8月下旬以来，全国报告新冠病毒感染病例数已连续10周下降，全国发热门诊、哨点医院新冠病毒核酸阳性率均呈持续下降趋势。， （陈坤与家人） 1995年陈坤考入东方歌舞团，成为了一名独唱歌手。
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