77/99 - 28/99 - 14/99=??????
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![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
72/99 -28/99 -14/99
= 1/99. ( 72-28-14)
= 1/99 . 30
=30/99= 10/33
![](https://rs.olm.vn/images/avt/0.png?1311)
72/99 - 28/99 -14/99 = 30/99 = 10/33
83,45 -30,98 -42,47 = 10
bạn
72/99 - ( 28/99 + 14/99) = 72/99 - 42/99 = 30
83,45 - 30,98 - 42,47 = 83,45 - (30,98 + 42,47)= 83.45 - 73.45 = 10
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{77}{22}-\frac{28}{22}-\frac{14}{22}\)
\(=\frac{77-28-14}{22}\)
\(=\frac{35}{22}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{72}{99}-\frac{28}{99}-\frac{14}{99}=\frac{72-28-14}{99}\)\(=\frac{30}{99}=\frac{10}{33}\)
\(\left(69,78+30,22\right)+35,97\)\(=100+35,97=135,97\)
\(83,45-\left(30,98+42,47\right)\)\(=83,45-73,45=10\)
72/99-28/99-14/99
=72/99-(28/99+14/99)
=72/99-42/99
=30/99=10/33
67,78+35,97+30,22
=(67,78+30,22)+35,97
=98+35,97
=133,97
83,45-30,98-42,47
=83,45-(30,98+42,47)
=83,45-73,45
=10
![](https://rs.olm.vn/images/avt/0.png?1311)
7/11+3/4+4/11+1/4
=(7/11+4/11)+(3/4+1/4)
=11/11+4/4=1+1=2
72/99-28/99-14/99
=72-28-14
99
=30/99=10/33
Tick cho mình nha mấy bạn
![](https://rs.olm.vn/images/avt/0.png?1311)
A) 72/99 - 28/99 - 14/99
= 8/11 - 28/99 - 14/99
= 8/11 - (28/99 - 14/99)
= 8/11 - 14/99
=58/99
B) 83,45 - 30,98 - 42,47
= 8345/100 - 3098/100 - 4247/100
= 1669/20 - 1549/50 - 4247/100
= (1669/20 - 1549/50) - 4247/100
= 5247/100 - 4247/100
= 10
Tick mình nha
A) 72/99-28/99-14/99 B)83,45-30,98-42,47
=72/99-(28/99+14/99) =83,45-(30,98+42,47)
=72/99-42/99 =83,45-73,45
=30/99=10/33 =10
![](https://rs.olm.vn/images/avt/0.png?1311)
=77/99-42/99
=35/99
\(\dfrac{77}{99}-\dfrac{28}{99}-\dfrac{14}{99}=\dfrac{77-28-14}{99}=\dfrac{35}{99}\)