x - 3/11 = 4/5
x =4/5+3/11
x=59/55
k mk nha
<=> x = 4/5 + 3/11
<=> x = 44/55 +15/55
=> x = 59/55
Vậy x = 59/55
x= \(\frac{4}{5}+\frac{3}{11}\)
x= \(\frac{59}{55}\)
x - 3/11 = 4/5
x =4/5+3/11
x=59/55
k mk nha
<=> x = 4/5 + 3/11
<=> x = 44/55 +15/55
=> x = 59/55
Vậy x = 59/55
x= \(\frac{4}{5}+\frac{3}{11}\)
x= \(\frac{59}{55}\)
Bài 1 : Tính bằng hai cách
a) ( 6/11 + 5/11 ) x 3/7 =
b) 3/5 x 7/9 - 3/5 x 2/9 =
c) ( 6/7 - 4/7 ) : 2/5 =
d) 8/15 : 2/11 + 7/15 : 2/11 =
Bài 2 : Tính
a) 2 x 3 x4/3 x 4 x 5 =
b) 2/3 x 3/4 x 4/5 : 1/5 =
c) 1 x 2 x 3 x 4 / 5 x 6 x 7 x8 =
d) 2/5 x 3/4 x 5/6 : 3/4 =
câu 8 : tìm x
3/5 : x = 3
câu 9
a) 1/5 + 4/11 + 4/5 + 7/11
b) 5/6 + ( 5/9 - 1/4 )
tính nhanh : a) 2/5 x 1/4 + 3/4 x 2/5 b) 6/11 : 2/3 + 5/11 : 2/3
( 5/8 + 1/4 ) x 2/3 =
5/7 x 1/3 + 4/3 =
9/11 + 1/12 : 11/24 =
a) 1+4/3
b) 5/9 : 2/3
c ) 4/3-1/3x5/2
d) ( 3/2-3/8):1/2
e) 15/16 : 3/8 x 3/4
f) 7/19 x 1/3 x 7/19 x 2/3
g) 3/5x 8/27 x 25/3
h) 1/5 + 4/11 + 4/5 + 7/11
Bài 3 : Tính
a) 11/7 + 3/5 , 4 + 1/9 b) 21/5 - 5/8 , 2 - 11/15
c) 3/19 x 38/9 , 21/5 x 2 c) 7/3 : 4/9 , 12/7 : 3
Tìm x:
x - 1/4 = 5/3
x : 5/11 = 22
2/4 + x = 1
x - 11/5 = 2/5 : 2/3
Nhanh nhé!!!
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 !!!!!!!!!❤❤
dung hay sai
5/7 + 3/4 = 41/28 ........
3 + 2/5 = 1........
11/9 - 5/6 = 7/18.......
4 - 3/7 = 25/7.....
tim x
x + 4/11 =3/5
a 13/3 b 13/11 c 13/55 d 13/31
( 3 + 31/33 ) x ( 4 + 11/14 ) x 25/35 x 11/195 x 81/134 x ( 5 + 4/9 )