\(\dfrac{11}{11}+\dfrac{1}{22}=?\)
K
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Những câu hỏi liên quan
HQ
Hà Quang Minh
Giáo viên
5 tháng 10 2023
a) \(\dfrac{7}{8} + \dfrac{7}{8}:\dfrac{1}{8} - \dfrac{1}{2}\)
\(\begin{array}{l} = \dfrac{7}{8} + \dfrac{7}{8}.8 - \dfrac{1}{2}\\ = \dfrac{7}{8}.1 + \dfrac{7}{8}.8 - \dfrac{1}{2}\\ = \left( {\dfrac{7}{8}.1 + \dfrac{7}{8}.8} \right) - \dfrac{1}{2}\\ = \dfrac{7}{8}.\left( {1 + 8} \right) - \dfrac{1}{2} = \dfrac{7}{8}.9 - \dfrac{1}{2}\\ = \dfrac{{63}}{8} - \dfrac{1}{2} = \dfrac{{63}}{8} - \dfrac{4}{8} = \dfrac{{63 - 4}}{8} = \dfrac{{59}}{8}\end{array}\)
b) \(\dfrac{6}{{11}} + \dfrac{{11}}{3}.\dfrac{3}{{22}}\)
\(\begin{array}{l} = \dfrac{6}{{11}} + \dfrac{{11.3}}{{3.22}} = \dfrac{6}{{11}} + \dfrac{1}{2}\\ = \dfrac{{12}}{{22}} + \dfrac{{11}}{{22}} = \dfrac{{12 + 11}}{{22}} = \dfrac{{23}}{{22}}\end{array}\)
14 tháng 9 2023
`# \text {DNamNgV}`
`16/21 + 6/7`
`= 16/21 + 18/21`
`= 34/21`
__
`15/22 \times 11/35`
`= (15 \times 11)/(22 \times 35)`
`= (5 \times 3 \times 11)/(2 \times 11 \times 5 \times 7)`
`= (3 \times 1)/(2 \times 7)`
`= 3/14`
___
`8/11 \div 5/22`
`= 8/11 \times 22/5`
`= (8 \times 22)/(11 \times 5)`
`= (8 \times 11 \times 2)/(11 \times 5)`
`= (8 \times 2)/5`
`= 16/5`
___
`9/13 \div 27/39`
`= 9/13 \times 39/27`
`= 9/13 \times 13/9`
`= 1`
S
16 tháng 5 2023
\(\left(-\dfrac{5}{11}+\dfrac{7}{22}--\dfrac{4}{33}-\dfrac{5}{44}\right):\left(38\dfrac{1}{22}-39\dfrac{7}{22}\right)\)
\(=\left(-\dfrac{60}{132}+\dfrac{42}{132}+\dfrac{16}{132}-\dfrac{15}{132}\right):\left(\dfrac{837}{22}-\dfrac{865}{22}\right)\)
\(=-\dfrac{17}{132}\cdot\left(-\dfrac{14}{11}\right)\)
\(=\dfrac{119}{726}\)
#AvoidMe
16 tháng 5 2023
\(=\left(\dfrac{-60}{132}+\dfrac{42}{132}+\dfrac{16}{132}-\dfrac{15}{432}\right):\left(-1-\dfrac{3}{11}\right)\)
\(=\dfrac{-17}{132}\cdot\dfrac{-11}{14}=\dfrac{17}{168}\)
K
19 tháng 4 2022
\(=\dfrac{5}{9}:\dfrac{-3}{22}+\dfrac{5}{9}:\dfrac{-9}{15}\)
\(=\dfrac{5}{9}:\left(\dfrac{-3}{22}+\dfrac{-9}{15}\right)\)
\(=\dfrac{5}{9}:\dfrac{-81}{110}=-\dfrac{550}{729}\)
2
19 tháng 4 2022
`5 / 9 : ( 1 / 11 - 5 / 22 ) + 5 / 9 : ( 1 / 15 - 2 / 3 )`
`= 5 / 9 : ( 2 / 22 - 5 / 22 ) + 5 / 9 : ( 1 / 15 - 10 / 15 )`
`= 5 / 9 : [-3] / 22 + 5 / 9 : [-3] / 5`
`= 5 / 9 . [-22] / 3 + 5 / 9 . [-5] / 3`
`= 5 / 9 ( [-22] / 3 + [-5] / 3 )`
`= 5 / 9 . [-27 ] / 3`
`= 5 / 9 . (-9)`
`=-5`
H9
HT.Phong (9A5)
CTVHS
24 tháng 8 2023
a) \(\dfrac{3}{22}\times\dfrac{3}{11}\times22\)
\(=\dfrac{3}{22}\times\dfrac{3}{11}\times\dfrac{22}{1}\)
\(=\dfrac{3\times3\times22}{22\times11\times1}\)
\(=\dfrac{9}{11}\)
b) \(\left(\dfrac{1}{3}+\dfrac{1}{6}\right)\times\dfrac{2}{5}\)
\(=\left(\dfrac{2}{6}+\dfrac{1}{6}\right)\times\dfrac{2}{5}\)
\(=\dfrac{3}{6}\times\dfrac{2}{5}\)
\(=\dfrac{1}{2}\times\dfrac{2}{5}\)
\(=\dfrac{2}{10}\)
\(=\dfrac{1}{5}\)
24 tháng 8 2023
a: =3/22*22*3/11
=3*3/11
=9/11
b: =(2/6+1/6)*2/5
=1/2*2/5
=1/5
`11/11+1/22`
`=22/22+1/22`
`=23/22`
cứ tưởng bạn trân làm á chứ:))