\(\frac{15}{26}+\frac{x}{16}=\frac{46}{52}\)

\(\frac{x}{16}=\frac{46}{52}-\frac{15}{26}\)

\(\frac{x}{16}=\frac{1}{4}\)

4 : 1 = 4

Suy ra x = 4

HkT~

#Wind

x = 16

HT

 \(\frac{15}{26}+\frac{x}{16}=\frac{46}{52}\)

\(\frac{x}{16}=\frac{46}{52}-\frac{15}{26}\)

\(\frac{x}{16}=\frac{4}{13}\)

\(< =>\frac{x}{208}=\frac{64}{208}=\frac{4}{13}\)

                    \(x=4\)

\(\frac{15}{26}+\frac{x}{16}=\frac{46}{52}\)

\(\Rightarrow\frac{15}{26}+\frac{x}{16}=\frac{23}{26}\)

\(\Rightarrow\frac{x}{16}=\frac{23}{26}-\frac{15}{26}\)

\(\Rightarrow\frac{x}{16}=\frac{4}{13}\)

\(\Rightarrow13x=4.16\)

\(\Rightarrow13x=64\)

\(\Rightarrow x=64:13\)

\(\Rightarrow x=\frac{64}{13}\)

Vậy x = \(\frac{64}{13}\)

_Chúc bạn học tốt_

Thanh Hiền lm đúng r đấy^^

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 \(x=4\)

\(\frac{46}{52}-\frac{15}{26}=\frac{46}{52}-\frac{30}{52}=\frac{16}{52}=\frac{4}{13}\)

\(\frac{15}{26}+\frac{x}{16}=\frac{46}{52}\)

\(\Leftrightarrow\frac{15}{26}+\frac{x}{16}=\frac{23}{26}\)

\(\Leftrightarrow\frac{x}{16}=\frac{23}{26}-\frac{15}{26}\)

\(\Leftrightarrow\frac{x}{16}=\frac{8}{26}=\frac{4}{13}\)

\(\Rightarrow13x=16\times4\)

\(\Rightarrow x=\frac{64}{13}\)

Bn phải ghi rõ x bằng bao nhiêu mk mới đc

x/13+15/26=46/52

=> x/13= 46/52-15/26

=> x/13=4/13

=> x=4

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

x/13 + 15/26 = 46/52

x/13              = 46/52 - 15/26

x/13              =       4/13

=> x = 4

day la cach lam don gian va de hieu nhat

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 ~

\(\frac{x}{13}:\frac{15}{16}=\frac{46}{52}\)

\(\Rightarrow\frac{x}{13}:\frac{15}{16}=\frac{23}{26}\)

\(\Rightarrow\frac{x}{13}=\frac{23}{26}\times\frac{15}{16}\)

\(\Rightarrow\frac{x}{13}=\frac{345}{416}\)

\(\Leftrightarrow416\times x=13\times345\)

\(\Rightarrow416\times x=4485\)

\(\Rightarrow x=4485:416\)

\(\Rightarrow x=\frac{345}{32}\)

\(\frac{x}{13}\div\frac{15}{16}=\frac{46}{52}\)

\(\Rightarrow\frac{x}{13}\div\frac{15}{16}=\frac{23}{26}\)

\(\Rightarrow x\div13=\frac{345}{416}\)

\(\Rightarrow x=\frac{345}{52}\)

~Study well~

#Thạc_Trân

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

7/3:5/1=14/15

đây là toán mà

A.x/27=6/18+2/9

x/27=5/9

x/27=15/27

=>x=15

B.x/13=46/52-15/26

x/13=4/13

=>x=4