\(\dfrac{4}{7}\) x \(\dfrac{21}{16}:\dfrac{5}{8}\) \(=\dfrac{84}{112}:\dfrac{5}{8}\)
\(=\dfrac{3}{4}:\dfrac{5}{8}\)
\(=\dfrac{3}{4}\) x \(\dfrac{8}{5}\)
\(=\dfrac{24}{20}\)
\(=\dfrac{6}{5}\)
11/15 + 8/15= Tính phân số
6/7 - 5/21=
25/4 x 16/100
7 x 2/49 =
4/3 : 2/9
5/8 : 25 =
Câu 1. Tính :
7/4 : 8/3 =
7/6 : 21/4 =
8/ 5 : 16/7 =…
5/12 : 25/4 =
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
Câu 1. Tính rồi gút gọn
7/4 : 8/3 =
7/6 : 21/4 =
8/ 5 : 16/7 =…
5/12 : 25/4 =
Tính giá trị của biểu thức:
a) 8/11 + 8/18 X 3/4
b) 5 / 12 - 7 /32 : 21 /16
1. 8/11 + 8/33 x 3/4
7/9 x 3/14 : 5/8
5/12 - 7/32 : 21/16
\(\dfrac{4}{7}\)x\(\dfrac{21}{16}\):\(\dfrac{5}{8}\)
\(\dfrac{4}{7}\)x\(\dfrac{21}{16}\):\(\dfrac{5}{8}\)
Tính bằng cách thuận tiện:
a, 7/9 x 13/25 x 9/7
b, 5/9 x 21/25 + 21/25 x 4/9
c, 19/5 x 11/16 - 9/5 x 11/16
