\(x+\frac{11}{14}=1\)
\(x=1-\frac{11}{14}\)
\(x=\frac{14}{14}-\frac{11}{14}\)
\(x=\frac{3}{14}\)
k nha
x + 11/14 = 1
x = 14/14 - 11/14
x = 3/14
x+11/14=1
=>x=1-11/14
=>x=14/14-11/14
=>x=3/14
\(x+\frac{11}{14}=1\)
\(x=1-\frac{11}{14}\)
\(x=\frac{14}{14}-\frac{11}{14}\)
\(x=\frac{3}{14}\)
k nha
x + 11/14 = 1
x = 14/14 - 11/14
x = 3/14
x+11/14=1
=>x=1-11/14
=>x=14/14-11/14
=>x=3/14
Bai1 Rút gọn phân số :
42 phần 36 = :............................................................................... 64phan 80 = .............................................................
210 phan 300 =............................................................ 88phan 55=............................................
Bai2:Quy đồng mẫu số :
a. 2phan 3;3phan5;7phan10:......................................................................................................
b. 1phan3;3phan4;7phan5
Bai3:dien dau lon ,be hoac bang
7phan9............ 1 1........11phan14 16phan20.............4phan5 16phan 13................1 18phan 9...........3
1 x 1 x 1 x 1 x 1 x 1 x 1 x 1 x 1 x 2 x3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 x 11 x 12 x 13 x 14 x 15 =
a) (1 - 1/2) x (1 - 1/3) x (1 - 1/4) x (1 - 1/5) x (1 - 1/6)
b) (1 - 1/2) x (1 - 1/4)x...x (1 - 1/2019) x (1 - 1/2020)
(1+ 1 3 ) x (1 + 1 8 ) x (1 + 1 15) x ( 1 + 1 24 ) x ... x (1 + 1 575 ) x (1 + 1 624 )
(1+1/49)x(1+1/50)x(1+1/51)x(1+1/52)x..............x(1+1/60)
a,(1+1/15)x(1+1/16)x(1+1/17)x(1+1/18)
b,(1-1/19)x(1-1/20)x(1-1/21)x(1-1/22)x(1-1/23)
giúp mình nha đây là bài của thầy minh khó quá
Tính: ( 1 + ) x ( 1 + ) x ( 1 + ) x…x ( 1 + ) x ( 1 +)
Tính nhanh
1/1 x 2 + 1/ 2 x 3 + 1/ 3 x 4 + 1/ 4 x 5 + 1/ 5 x 6 + 1/ 6 x 7 + 1/ 7 x 8.
(1- 1/2 )x(1-1/3)x(1-1/4)x(1-1/5)x......x(1-1/10) =