15/26+X/16=46/52
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15/26 + x/16 = 46/52
x/16 = 46/52 - 15/26
x/16 = 1/4
x/16 = 4/16
Suy ra: x = 4
Vậy x = 4
\(\frac{15}{26}+\frac{x}{16}=\frac{46}{52}\)
\(\Rightarrow\frac{x}{16}=\frac{45}{52}-\frac{15}{26}\)
\(\Rightarrow\frac{x}{16}=\frac{4}{13}\Rightarrow\frac{64}{208}=\frac{x}{16}=\frac{64}{208}=\frac{x}{208}\Rightarrow x=64\)
\(\frac{15}{26}+\frac{x}{16}=\frac{46}{52}\)
\(\frac{x}{16}=\frac{46}{52}-\frac{15}{26}\)
\(\frac{x}{16}=\frac{4}{13}\)
\(< =>\frac{x}{208}=\frac{64}{208}=\frac{4}{13}\)
\(x=4\)
\(\frac{15}{26}+\frac{x}{16}=\frac{46}{52}\)
\(\Rightarrow\frac{15}{26}+\frac{x}{16}=\frac{23}{26}\)
\(\Rightarrow\frac{x}{16}=\frac{23}{26}-\frac{15}{26}\)
\(\Rightarrow\frac{x}{16}=\frac{4}{13}\)
\(\Rightarrow13x=4.16\)
\(\Rightarrow13x=64\)
\(\Rightarrow x=64:13\)
\(\Rightarrow x=\frac{64}{13}\)
Vậy x = \(\frac{64}{13}\)
_Chúc bạn học tốt_
Nhầm, làm lại nhé!
\(\frac{x}{13}+\frac{15}{26}=\frac{46}{52}\)
\(\frac{x}{13}+\frac{15}{26}=\frac{23}{26}\)
\(\frac{x}{13}=\frac{23}{26}-\frac{15}{26}\)
\(\frac{x}{13}=\frac{23}{26}-\frac{15}{26}\)
\(\frac{x}{13}=\frac{4}{13}\)
\(\Rightarrow x=\frac{13.4}{13}=4\)
Vậy \(x=4\)
\(\frac{46}{52}-\frac{15}{26}=\frac{46}{52}-\frac{30}{52}=\frac{16}{52}=\frac{4}{13}\)
\(\frac{15}{26}+\frac{x}{16}=\frac{46}{52}\)
\(\Leftrightarrow\frac{15}{26}+\frac{x}{16}=\frac{23}{26}\)
\(\Leftrightarrow\frac{x}{16}=\frac{23}{26}-\frac{15}{26}\)
\(\Leftrightarrow\frac{x}{16}=\frac{8}{26}=\frac{4}{13}\)
\(\Rightarrow13x=16\times4\)
\(\Rightarrow x=\frac{64}{13}\)
x/3 + 15/26 = 46/52
x/13 + 15/26 = 23/26
x/13 = 23/26 - 15/26
x/13 = 4/13
Có x/13 = 4/13
Suy ra : x = 4
Vậy x = 4
a) \(...=-\dfrac{12}{46}-\dfrac{15}{21}+\dfrac{3}{7}-\dfrac{7}{23}\)
\(=-\dfrac{12}{46}-\dfrac{7}{23}-\dfrac{15}{21}+\dfrac{3}{7}\)
\(=-\dfrac{6}{23}-\dfrac{7}{23}-\dfrac{5}{7}+\dfrac{3}{7}\)
\(=-\dfrac{13}{23}-\dfrac{2}{7}\)
\(=-\dfrac{13.7}{23.7}-\dfrac{2.23}{23.7}\)
\(=-\dfrac{91}{161}-\dfrac{46}{161}=-\dfrac{137}{161}\)
b) \(...=-21+\dfrac{7}{9}-\dfrac{3}{17}+\dfrac{25}{9}\)
\(=-21-\dfrac{3}{17}+\dfrac{7}{9}+\dfrac{25}{9}\)
\(=-21-\dfrac{3}{17}+\dfrac{32}{9}\)
\(=-\dfrac{3213}{153}-\dfrac{27}{153}+\dfrac{544}{153}=-\dfrac{2696}{153}\)
\(\frac{x}{13}:\frac{15}{16}=\frac{46}{52}\)
\(\Rightarrow\frac{x}{13}=\frac{46}{52}\cdot\frac{15}{16}=\frac{23}{26}\cdot\frac{15}{16}\)
\(\Rightarrow\frac{x}{13}=\frac{345}{416}\)
\(\Rightarrow x=\frac{345}{416}\cdot13=\frac{345}{32}\)
Vậy \(x=\frac{345}{32}\)
K MK ĐI. ~ HỌC TỐT NHA ~
\(\frac{x}{13}:\frac{15}{16}=\frac{46}{52}\)
\(\Rightarrow\frac{x}{13}:\frac{15}{16}=\frac{23}{26}\)
\(\Rightarrow\frac{x}{13}=\frac{23}{26}\times\frac{15}{16}\)
\(\Rightarrow\frac{x}{13}=\frac{345}{416}\)
\(\Leftrightarrow416\times x=13\times345\)
\(\Rightarrow416\times x=4485\)
\(\Rightarrow x=4485:416\)
\(\Rightarrow x=\frac{345}{32}\)
A) x/13+15/26=46/52
x/13+15/26=23/26
x/13=23/26-15/26
x/13=4/13
x=4
\(\frac{15}{26}+\frac{x}{16}=\frac{46}{52}\)
\(\frac{x}{16}=\frac{46}{52}-\frac{15}{26}\)
\(\frac{x}{16}=\frac{1}{4}\)
4 : 1 = 4
Suy ra x = 4
HkT~
#Wind
x = 16
HT