\(\left(\frac{1}{4}\cdot x-\frac{1}{8}\right)\cdot\frac{3}{4}=\frac{1}{4}\)
\(\frac{1}{4}\cdot x-\frac{1}{8}=\frac{1}{4}:\frac{3}{4}\)
\(\frac{1}{4}\cdot x-\frac{1}{8}=\frac{1}{3}\)
\(\frac{1}{4}\cdot x=\frac{1}{3}+\frac{1}{8}\)
\(\frac{1}{4}\cdot x=\frac{11}{24}\)
\(x=\frac{11}{24}:\frac{1}{4}\)
\(x=\frac{11}{6}\)
2 tính : a) 1+1/4+1/8+1/16 =
=
b) 2-1/8-1/12-1/16 =
=
c) 4/99 x 18/5 : 12/11 + 3/5 =
=
d) ( 1-3/4 ) x ( 1+ 1/3 ) : ( 1- 1/3 ) =
=
a, x - 3/4=6 x 3/8
b, 7/8 : x=3 - 1/2
c, x + 1/2 x 1/3=3/4
lưu ý: / là phần
tìm x
a) x+1/4 = 5/8
b) x - 3/5 = 1/10
c) 7/8 - x = 1/4
d) x: 3/2 = 1/4
đ) x nhân 2/7 = 6/11
e) 4/5 : x = 2/3
tính
a) 7/9 x 5/6
b) 1/5 : 7/10
c) 6/5 x ( 2/3 - 3/5 )
d) 1/4 : 3/8 x 6/5
ai làm nhanh và đúng thì mình sẽ tích và likes
Tính nhanh:
C=\(\dfrac{1}{8}\)x\(\dfrac{3}{2}\)-\(\dfrac{1}{8}\)x\(\dfrac{1}{4}\)+\(\dfrac{3}{8}\)x\(\dfrac{5}{4}\)
( 1/4 * x - 1/8 ) x 3/4 = 1/4
tìm x
giúp mk vs!
1. 4 1/7 - x = 2 5/9
2. 3 × x = 12,18
3. 4 1/2 × x = 5
4. 3/4 × x = 1
5. 4/5 : x = 3
6. 12/x = 4
7. 4/7 : x = 4/7
8. 2x - 3/4 = 7/8
P/s : Giúp mk nha mấy bạn 😘😘
1) Tìm x
a) (1/4 x X - 1/8) x 3/4 = 1/4
b) 12/5 : X = 14/3 x 4/7
c) x + 2/3 = 8 : 4 - 1
2) Thực hiện phép tính:
a) (1/5 + 3/4) x 1/2
b) 13/20 - (1/4 - 5/20)
c) 1/10 + 4/20 + 9/30 + 25/50 + 36/60 + 49/70 + 64/80 + 81/90
d) 2/3.5 + 2/5.7 + 2/7.9 + ... + 2/41.43
Tìm x biết :
a) x + 1/15 = 1/3 - 1/4
b) x - 5/12 = 1/3 + 1/4
c) X x 2/7 = 3/4 x 4/15
d) x : 3/8 = 4/3 : 3/6
(2 + 4 + 6 + ... + 98) x (\(\dfrac{3}{4}\) x 8 - 15 x 0,4) x (\(\dfrac{1}{2}\) + \(\dfrac{1}{4}\) + \(\dfrac{1}{8}\) + ... + \(\dfrac{1}{512}\) )
Giúp mình vớiii
bai 1( tinh bang 2 cach)
a, ( 1/8 + 1/4 ) x 2/3 b, ( 3/8 - 1/4 ) x 4/7 c,1/3 x 3/4 - 1/3 x 2/3 d,1/2 x 1/3 +1/2 x 2/3
