Tính tổng
A=1 x 5 x 51 x52 x 53x54x55x56x57x58x59x510
kết quả là 5 ^ 56
9/6-y x5/6 =1/2 +2/3
9/6 - y x 5/6 = 1/2 + 2/3
9/6 - y x 5/6 = 7/6
y x 5/6 = 9/6 - 7/6
y x 5/6 = 2/6
y = 2/6 : 5/6
y = 2/5
-5.(x+1/5)-1/2.(x-2/3)=3/2.x5/6
6 x5/3 7:8/4+1/3 2x5/8-1/2 3/7:5/6x1/4
10
\(\dfrac{23}{6}\)
\(\dfrac{3}{4}\)
\(\dfrac{9}{70}\)
6 x5/3=10 7:8/4+1/3=23/6 2x5/8-1/2=3/4 3/7:5/6x1/4=9/70
tính bằng hai cách
a) (2/3 x 4/5)x5/6 =
b)(1/2+1/3)x1/5=
tim y biết 9/4 -y x5/6 =1/2+1/3
y=\(\frac{17}{10}\)
nếu đúng thì k
\(\left(\dfrac{1}{2}+\dfrac{1}{3}\right)x\dfrac{5}{6}=\dfrac{5}{6}x\dfrac{5}{6}=\dfrac{25}{36}\)
(2\5+3\5)x5\3
1:5\6-1
Bài làm
a) \(\left(\frac{2}{5}+\frac{3}{5}\right)x\frac{5}{3}\)
\(=\frac{5}{5}x\frac{5}{3}\)
\(=\frac{5}{3}\)
b) \(1:\frac{5}{6}-1\)
\(=1x\frac{6}{5}-1\)
\(=\frac{6}{5}-\frac{5}{5}\)
\(=\frac{1}{5}\)
~ Lớp 3 hok cái này r. ~
# Học tốt #
a) 4/5 x 6/7 b)2/3 x 3/5 c)1/2 x1/3 d) 1/5 x5/7