10+5,6
K
Khách
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Những câu hỏi liên quan
NT
Nguyễn Thị Thương Hoài
Giáo viên
VIP
9 tháng 7 2023
B = \(\dfrac{5}{2.6}\)+ \(\dfrac{5}{6.10}\)+...+\(\dfrac{5}{402.406}\)
B = 5.( \(\dfrac{1}{2.6}\)+ \(\dfrac{1}{6.10}\)+...+\(\dfrac{1}{402.406}\))
B = 5.(\(\dfrac{1}{2}\) - \(\dfrac{1}{6}\)+ \(\dfrac{1}{6}\)- \(\dfrac{1}{10}\)+...+\(\dfrac{1}{402}\)-\(\dfrac{1}{406}\))
B = 5.(\(\dfrac{1}{2}\) - \(\dfrac{1}{406}\))
B = 5.\(\dfrac{101}{203}\)
B = \(\dfrac{505}{203}\)
N
10 tháng 7 2017
10 - x + 2x = 46,8 : 5,6
=> 10 + x = \(\frac{117}{14}\)
=> x = \(\frac{117}{14}-10\)
=> x = \(-\frac{23}{14}\)
10 tháng 7 2017
10 - x + 2x = 46,8 : 5,6
10 + x = 117/14
x = 117/14 - 10
x = -23/14
12 tháng 11 2021
5,35 x 10= 53,5
6,7 x 100= 670
5,6 x 0,1=0,56
7,89 x 0,01=0,0789
9,7 x 0,001=0,0097
NT
Nguyễn Thị Thương Hoài
Giáo viên
VIP
16 tháng 12 2023
a, 456,4 - 134,4 : 5,6
= 456,4 - 24
= 432,4
64,8 : 10 : 2,5
= 6,48 : 2,5
= 2,592
b, 106, 8 : 12 + 23,7
= 8,9 + 23,7
= 32,6
218,3 : 100 : 0,1
= 2,183 : 0,1
= 21,83
10 + 5,6 = 15,6
= 15,6
k mk mk k lại
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