lưu ý: / là phần
tìm x
a) x+1/4 = 5/8
b) x - 3/5 = 1/10
c) 7/8 - x = 1/4
d) x: 3/2 = 1/4
đ) x nhân 2/7 = 6/11
e) 4/5 : x = 2/3
tính
a) 7/9 x 5/6
b) 1/5 : 7/10
c) 6/5 x ( 2/3 - 3/5 )
d) 1/4 : 3/8 x 6/5
ai làm nhanh và đúng thì mình sẽ tích và likes
1 tính
a,( 5/6 + 3/8 ) x 2/7
b,6/7x2/3:5/7
c,8/9+3/4x4/9
1+2+3+4+5+6+7+8+9+.............+99=X+1+2+3+4+5+6+7+8+9+........................+99
Tìm X
tim x
a, x +3/8 = 4/3
b, x- 1/9 =7/6
c, x * 1/9 = 21/8
d, x chia 8/3 = 5
tìm x
a) x + 3/8 = 4/3
b)x x 1/9 = 21/8
c)x - 4/5=7/6
d)x : 8/3 = 5
a)\(\dfrac{7}{8}\)x\(\dfrac{3}{13}\)+\(\dfrac{4}{9}\)x\(\dfrac{4}{13}\)
b)\(\dfrac{6}{5}\)+\(\dfrac{7}{3}\)+\(\dfrac{8}{9}\)
c)23: \(\dfrac{5}{14}\)+\(\dfrac{6}{7}\)+\(\dfrac{4}{9}\)
d)\(4\dfrac{1}{4}\)+\(7\dfrac{3}{7}\)-\(2\dfrac{4}{17}\)
e)8-(9\(\dfrac{2}{11}\)+\(\dfrac{8}{33}\))
Tìm giá trị của 11 x 10 - 10 x 9 + 9 x 8 - 8 x 7 + 7 x 6 - 6 x 5 + 5 x 4 - 4 x 3 + 3 x 2 - 2 x 1.
tinh gia tri bieu thuc:
A) 1000000 - 107492 : 154 x 28 + 1000
B) 8/15 + 4/7 + 14/30 + 12/21 + 5
C) 9/13 : 6/11 - 5/12 : 6/11
Tim x :
1) X x2 + X x 1/5 = 8/5
2) X : 3/8 = 4/3 : 3/6
tìm x
a) \(1\dfrac{1}{2}:x=\dfrac{1}{2}\) b)\(\dfrac{7}{9}-x=\dfrac{2}{3}\) c)\(\dfrac{8}{7}:x=\dfrac{6}{7}\) d)\(\dfrac{9}{5}-x=\dfrac{3}{7}\)