( 247 - 82 ) : 5 - 1 + 5871 : 103
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![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(5871:\left[928-\left(247-82.5\right)\right]\\ =5871:\left[928-\left(247-410\right)\right]\\ =5871:\left[928-\left(-163\right)\right]\\ =5871:1091\\ =\dfrac{5871}{1091}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(=\dfrac{5871}{928-\left(247-410\right)}=\dfrac{5871}{928-247+410}\)
\(=\dfrac{5871}{1091}\)
\(5871:\left[928-\left(247-82\cdot5\right)\right]\)
\(=5871:\left[928-\left(247-410\right)\right]\)
\(=5871:\left(928+163\right)\)
\(=5871:1091\)
\(=\dfrac{5871}{1091}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(=5871:\left[928-165\cdot5\right]\\ =5871:\left[928-825\right]=5871:103=57\)
\(=5871:\left[928-165.5\right]=5871:\left[928-825\right]=5871:103=57\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(=5871:\left[928-\left(247-410\right)\right]\)
\(=5871:\left(928+163\right)\)
\(=5871:1091\)
\(=\frac{5871}{1091}\)
tíc mình nha
![](https://rs.olm.vn/images/avt/0.png?1311)
5871⁰ : [928 - (247 - 82).5] + 2175⁰
= 1 : (928 - 165.5) + 1
= 1 : (928 - 825) + 1
= 1 : (-103) + 1
= 102/103
![](https://rs.olm.vn/images/avt/0.png?1311)
5871:{928-[(-82)+247].5}
=5871:{928-165.5}
=5871:{928-825}
=5871:103
=57
5871:{928-[(-82)+247)].5}
=5871:{928-165}.5
=5871:763.5
=5871:3816
=???????
![](https://rs.olm.vn/images/avt/0.png?1311)
A= 30-(60-(2+(17-12))):15
A=(60-(2+5)):15
A=30-(60-7):15
A=30-53:15
A=30-53/15=397/15
![](https://rs.olm.vn/images/avt/0.png?1311)
5871:[928-(247-82.5)]
=5871:[928-(247-410)]
=5871:[928-(-163)]
=5871:(928+163)
=5871:1091
=5.381301558
=
![](https://rs.olm.vn/images/avt/0.png?1311)
(247-82):5-1+5871:103
=165:5-1+5871:103
=33-1+57
=32+57
=89