Rút gọn phân số
(-17).13+17.2 / 1.2-11.19
24-12.13 / 12+4.9
-5.4+8.(-7) / (-12).5+7.4
Những câu hỏi liên quan
Rút gọn các phân số sau:
a)\(\dfrac{11.8-11.3}{17-6}\) ; b)\(\dfrac{24-12.13}{12+4.9}\); c)\(\dfrac{7.6-7.4}{7.3}\); d)\(\dfrac{7}{9.10^2-2.10^2}\)
a) \(\dfrac{11\cdot8-11\cdot3}{17-6}\)
\(=\dfrac{11\cdot\left(8-3\right)}{11}=5\)
b) \(\dfrac{24-12\cdot13}{12+4\cdot9}\)
\(=\dfrac{12\cdot\left(2-13\right)}{12\left(1+3\right)}=\dfrac{-11}{4}\)
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Rút gọn phân số : \(\frac{24-12.13}{12+4.9}\)
\(\frac{24-12.13}{12+4.9}=\frac{24-156}{12+36}=\frac{-132}{48}=\frac{-11}{4}\)
\(\frac{24-12\cdot13}{12+4\cdot9}=\frac{24-156}{12+36}=\frac{-132}{48}=\frac{-11}{4}\)
\(\frac{24-12.13}{12+4.9}\)
\(=\)\(\frac{12.2-12.13}{12.1+12.3}\)
\(=\frac{12\left(2-13\right)}{12\left(1+3\right)}\)
\(=\frac{2-13}{1+3}\)
\(=\frac{-11}{4}\)
rút gọn phân số:
\(\frac{24-12.13}{12+4.9}\)
Rút gọn phân số:
\(\frac{24-12.13}{12+4.9}=\frac{24-4.3.13}{12+4.9}=\frac{24-3.13}{12+9}=\frac{24-3.13}{12+3.3}=\frac{24-13}{12+3}=\frac{11}{14}\)
Sai thì thôi nhé!
\(\frac{24-12.13}{12+4.9}\)=\(\frac{24-156}{12+36}\)=\(\frac{-132}{48}\)=-\(\frac{11}{4}\)
Mình nhầm, đoạn cuối \(=\frac{11}{15}\), bạn sửa lại cho mình nhé!
Have a nice day!
Rút gọn các phân số sau:
a
)
13.9
−
13.2
25
−
12
;
b
)
42
−
14.8
7
+
21.3
;
c
)
9.6
−
18.4
12.3...
Đọc tiếp
Rút gọn các phân số sau:
a ) 13.9 − 13.2 25 − 12 ; b ) 42 − 14.8 7 + 21.3 ; c ) 9.6 − 18.4 12.3
d ) 5.5 2 9.10 2 − 4.10 2 ; e ) ( − 7 ) .3 − 4. ( − 6 ) ( − 5 ) .3 − 2.3 ; f ) ( − 17 ) .13 + 17.2 − 11.2 − 11.9
a ) 7. b ) − 1 c ) − 1 2
d ) 1 4 e ) − 1 7 f ) 17 21
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Rút gọn: 24-12.13 / 12+4.9
\(\frac{24-12.13}{12+4.9}=\frac{12.2-12.13}{4.3+4.9}\frac{12.\left(2-13\right)}{4.\left(3+9\right)}=\frac{3.\left(-11\right)}{12}=\frac{-11}{4}\)
Rút gọn các phân số sau:
a
)
9.6
−
9.3
18
;
b
)
17.5
−
17
3
−
20
;
c
)
49
+
7.49
49
d
)
9
13.3...
Đọc tiếp
Rút gọn các phân số sau:
a ) 9.6 − 9.3 18 ; b ) 17.5 − 17 3 − 20 ; c ) 49 + 7.49 49
d ) 9 13.3 2 − 4.3 2 ; e ) ( − 5 ) .4 + 8. ( − 7 ) ( − 12 ) .5 + 7.4 ; f ) ( − 14 ) .11 + 14.2 11.21 − 7.22
a) 3 2
b) -4
c) 8
d) 1 9
e) 19 8
f) − 18 11
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Rút gọn phân số:\(\frac{7.4^5.3^{11}+2^{13}.9^5}{6^{10}+2^{12}.3^{10}}\)
Rút gọn phân số:\(\frac{7.4^5.3^{11}+2^{13}.9^5}{6^{10}+2^{12}.3^{10}}\)
Rút gọn các phân số sau
a
)
11.8
−
11.3
17
−
6
;
b
)
24
−
12.13
12
+
4.9
;
c
)
7.6
−
7.4
7.3
d...
Đọc tiếp
Rút gọn các phân số sau
a ) 11.8 − 11.3 17 − 6 ; b ) 24 − 12.13 12 + 4.9 ; c ) 7.6 − 7.4 7.3
d ) 7 9.10 2 − 2.10 2 ; e ) ( − 7 ) .3 + 4. ( − 6 ) ( − 5 ) .3 + 2.3 ; f ) ( − 17 ) .13 + 17.2 11.2 − 11.19