Tìm x biết :
x + 4/5 = 4/5 + ( 3/7 + 3/5 ) 5/7 + x/35 = 4/5
x < 3/4 + 2 2/3 + 1 < x < 5/6 + 4
x< 5/6 - 3/4 2/3 < x < 2 - 5/6
Tìm x :
3/7 x x = 1/3
x : 6/8 = 2/5
x - 2/3 = 5/6
x - 2/5 - 4/35 = 1/7
Tìm x:
X : 3/4=5/6
X-2/3=4/6
7/10 : X=7/2
5/8 : X=5
Bài 1: Tính
a) 1/3 + 1/5 - 1/4 b) 7/8 - ( 1/4 + 2/5 ) c) 5/11 - ( 3/5 - 6/11 )
Bài 2: Tìm x
a) x + 2/5 = 1/2 b) x + 3/7 = 2/5 + 3/10 c) 19/20 - x = 8/5 - 3/4
Bài 3: Tìm số tự nhiên x, biết:
a ) 4/7 < x < 1/2 + 10/3 b) 3/10 + 8/5 < x < 2/5 + 5
Giúp mình nha ^^ Ai nhanh mình Tick !!!!!!!!!❤❤
Tìm x là số tự nhiên :
2/7 x X/3 x 4/5 = 2/3 x 4/5 x 6/7
Tìm x
3/4:6/x:8/7=3/8:4/5:6/7
2/5:x/3:7/4=24/315
tìm x
a.35/28-x=5/14 b.6/7x X= 2/3
C.X x 7=3/4 D.2: x -1/3=2/5
1. Tính
a, 1/3 + 5/12 7/9 - 4/9 7/9 - 2/3
b, 2/7 +4/5 2/3 -5/4. 31/5 - 2/7
c, 3/4 + 1/6. 11/12 - 3/4. 7/6- 5/8.
2. Tìm x
2/9 + x = 1
6/7 - x =2/3
X - 3/2 = 5/6
2/5 × X = 2/3
2/5 : x = 1/3
x : 5/12 = 22
bài 3 tìm x :
A ) x + 4/9 = 5/27
b ) x - 4/11= 7/33
c ) 8/5 - x = 1/3 x 2/5
d ) x - 3/4 = 1/2 + 2/6
tìm x
(x+7\4) x3\2=6
x:5\3+2\5=9\5
1\2:3+x=5\3