A) X = 5/6 : 3/8
X = 20/9
B) X = 15/16 x 4/5
X = 60/80 = 3/4
a) \(x=\dfrac{5}{6}:\dfrac{3}{8}=\dfrac{20}{9}\)
b) \(x=\dfrac{15}{16}.\dfrac{4}{5}=\dfrac{3}{4}\)
a) x = 5/6 : 3/8
x = 20/9
b) x = 15/16 x 4/5
x = 3/4
A) X = 5/6 : 3/8
X = 20/9
B) X = 15/16 x 4/5
X = 60/80 = 3/4
a) \(x=\dfrac{5}{6}:\dfrac{3}{8}=\dfrac{20}{9}\)
b) \(x=\dfrac{15}{16}.\dfrac{4}{5}=\dfrac{3}{4}\)
a) x = 5/6 : 3/8
x = 20/9
b) x = 15/16 x 4/5
x = 3/4
Điền dấu : >,<,=
a,5/3 x 7/10 .... 5/7 : 7/10
b, 4/5 x 5/6 ..... 8/9 : 4/3
c, 5/11 x 33/15 ..... 6/17 x 34/25
d, 15/19 x 38/5 ..... 15/16 : 3/8
Mong mn làm giúp ạ
1.
a 9/5 : 3/10 + 5/3
b 7/8 x 4/5 : 3/5
2.
a, tìm X, biết
3/5 x X - 3/2 = 5/6
b, tính nhanh
12/15 + 37/7 + 16/5 + 5/7
ai làm nhanh với đũng thì mik tích hoi :D
TÍNH NHANH
a) 3/16 + 4/15 + 5/16 + 1/15
b) 6/7 x 8/15 x 7/6 x 15/16
c) 19/20 x 13/21 + 9/20 x 8/21
d) (1+ 10/15 ) x (1+ 1/16 ) x ( 1+ 1/17 ) x ( 1+ 1/18 )
MINK ĐANG CẦN GẤP
Tính :
a) 5 / 6 x 6 / 7 x 7 / 8 : 15 / 16
b) 4 / 7 x 7 / 10 x 3 / 4 : 9 / 20
Tính :
a) 5 / 6 x 6 / 7 x 7 / 8 : 15 / 16
b) 4 / 7 x 7 / 10 x 3 / 4 : 9 / 20
Bài 1: Tìm x
a, x + 15/16 + 7/8 = 15/4 b, x - 27/28 - 9/14 = 13/7
c, x nhân 1/5 + x + 1/6 = 2/3 d, x: 14 = 1/4 + 2/9 + 3/4
tính theo mẫu :
Mẫu : ( 5 / 8 x 3 / 4 ) x 4 / 5 = 5 / 8 x ( 3 / 4 x 4 / 5 ) = 5 / 8 x 3 / 5 = 3 / 8
a) ( 4 / 9 x 3 / 7 ) x 7 / 4
b) ( 6 / 5 x 4 / 5 ) x 25 / 16
c) ( 7 / 8 x 16 / 9 ) x 3 / 14
tính theo mẫu :
Mẫu : ( 5 / 8 x 3 / 4 ) x 4 / 5 = 5 / 8 x ( 3 / 4 x 4 / 5 ) = 5 / 8 x 3 / 5 = 3 / 8
a) ( 4 / 9 x 3 / 7 ) x 7 / 4
b) ( 6 / 5 x 4 / 5 ) x 25 / 16
c) ( 7 / 8 x 16 / 9 ) x 3 / 14
Tính :
2/5 + 11/15 =
7/8 - 7/9 =
11/13 x 26/31 =
16/24 : 4 =
30 : 6/5 =
9/16 : 4 =
1/2 : 1/3 x 8/15 =