Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
bạn viết thiếu đề rồi, nếu muốn tính x thì bạn phải viết cả kết quả của biểu thức này nữa thì mới tính x được chớ
3/8+(x+5/24):2/3=1
(x+5/24):2/3=1-3/8
(x+5/24):2/3=5/8
x+5/24 =5/8x2/3
x+5/24 =5/12
x =5/12:5/24
x =2
3/8 + (x - 5/24 ) ÷ 2/3 = 1
3/8+(x-5/24)=1.2/3
x-5/24=2/3-3/8
x-5/24=7/24
x=7/24-5/24
x=2/24=1/12
học tốt
3/8 + (x - 5/24 ) ÷ 2/3 = 1
3/8+(x-5/24)=1.2/3
x-5/24=2/3-3/8
x-5/24=7/24
x=7/24-5/24
x=2/24=1/12
\(a.\dfrac{1}{2}:3+x=\dfrac{14}{5}\)
\(\dfrac{1}{6}+x=\dfrac{14}{5}\)
\(=>x=\dfrac{79}{30}\)
\(b.\dfrac{8}{5}:x:\dfrac{7}{4}=\dfrac{11}{6}\)
\(\left(\dfrac{8}{5}\cdot\dfrac{4}{7}\right):x=\dfrac{11}{6}\)
\(\dfrac{32}{35}:x=\dfrac{11}{6}\)
\(x=\dfrac{192}{385}\)
\(c.\dfrac{24}{10}+x:\dfrac{3}{4}=\dfrac{11}{3}\)
\(x:\dfrac{3}{4}=\dfrac{11}{3}-\dfrac{24}{10}\)
\(x:\dfrac{3}{4}=\dfrac{38}{30}\)
\(=>x=\dfrac{19}{20}\)
\(a,\dfrac{1}{2}:3+x=\dfrac{14}{5}\\ \Leftrightarrow x+\dfrac{1}{6}=\dfrac{14}{5}\\ \Leftrightarrow x=\dfrac{79}{30}\\ b,\dfrac{8}{5}:x:\dfrac{7}{4}=\dfrac{11}{6}\\ \Leftrightarrow x=\dfrac{192}{385}\\ c,\dfrac{24}{10}+x:\dfrac{3}{4}=\dfrac{11}{3}\\ \Leftrightarrow\dfrac{4}{3}x=\dfrac{19}{15}\\ \Leftrightarrow x=\dfrac{19}{20}\)
a) 2/3 : 3/5 × 5/7 : 2/3
= 2/3 × 5/3 × 5/7 × 3/2
= 25/21
b) 1 1/2 × 1 1/3 × 1 1/18 × 1 1/15 × 1 1/24 × 1 1/35
= 3/2 × 4/3 × 19/18 × 16/15 × 25/24 × 36/35
= 2 × 152/35 × 15/14
= 304/35 × 15/14
= 152/7
a) 3/5x7/8:10/9=21/40:10/9=189/400
b) 3 2/7x2 1/4:1 2/5=23/7x9/4:7/5=207/28:7/5=1035/196
c) 6/9+24/15+12/9+6/15=34/15+12/9+6/15=18/5+6/15=4
d) 3 2/9-( 1 5/8+1 2/9 )=29/9-(13/8+11/9)=29/9-205/72=3/8
`#3107.101107`
\(\dfrac{3}{8}+\left(x-\dfrac{5}{24}\right)\div\dfrac{2}{3}=1\\ \left(x-\dfrac{5}{24}\right)\div\dfrac{2}{3}=1-\dfrac{3}{8}\\ \left(x-\dfrac{5}{24}\right)\div\dfrac{2}{3}=\dfrac{5}{8}\\ x-\dfrac{5}{24}=\dfrac{5}{8}\times\dfrac{2}{3}\\ x-\dfrac{5}{24}=\dfrac{5}{12}\\ x=\dfrac{5}{12}+\dfrac{5}{24}\\ x=\dfrac{5}{8}\)
Vậy, \(x=\dfrac{5}{8}.\)