Tính:
a) 1/8 x 4/5 : 6/10
b) (2/3 - 1/4) x 6/5
c) 24/35 : (4/5 x 8/7)
d) 3 + 5/7 - 1/3
Tính:
a) 4 + 5/7 = ...........................
5/9 x 6/7 = ........................
3 - 7/5 = ............................
3/5 x 4/8 = ........................
b) 2 - 1/4 = ...........................
4 : 5/9 = ...........................
2/9 x 3/5 = .......................
3/8 : 4 = ...........................
Tính:
a) \(\dfrac{11}{10}+\dfrac{3}{5}:\dfrac{2}{3}\)
b) \(\dfrac{4}{3}\) + 5 x \(\dfrac{5}{8}\)
c) \(\left(\dfrac{2}{5}+\dfrac{3}{7}\right)x\dfrac{25}{29}\)
d) \(\dfrac{1}{4}x\dfrac{5}{12}+\dfrac{5}{12}x\dfrac{4}{5}\)
a) 7 + 3/4 - 5/6 = ?
b) 8 x 4/5 : 6/7 = ?
c) 1/2 + 2/3 + 3/4 = ?
d) 4/5 + 5/4 + 7/20 = ?
Tính:
a) 9/5 + 2/5 x 4/6
b) 3/8 x 2 - 6/7 x 1/3
2. Tính:
A) 3/7 x 7/9 x 1/2.
B) 5/8 x 4 x 1/2.
C) 4 x 1/24 x 3.
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 =
tính giá trị biểu thức: a) 6 : 5/2 - 3/10 b) 4/6 :4/3 + 4/3 c) 5/2 x 1/3 + 1/4 d) 6/7 : (1/2 x 3/4 ) -5/8
2. Tính: A) 1/3 + 1/5 - 1/4. B) 7/8 - ( 1/4 + 2/5 ). C) 5/11 - ( 3/5 - 6/11 ). D) 5/7 - ( 19/35 - 6/15 ).
2. Tính: A) 1/3 + 1/5 - 1/4. B) 7/8 - ( 1/4 + 2/5 ). C) 5/11 - ( 3/5 - 6/11 ). D) 5/7 - ( 19/35 - 6/15 ).