\(\frac{27+4500+135+550.2}{2+4+6+...+16+18}\)= \(\frac{27+4500+135+1100}{\left(18+2\right).\left[\left(18-2\right):2+1\right]:2}\)= \(\frac{5762}{20.19:2}\)=\(\frac{5762}{190}\)=\(\frac{2881}{95}\)
\(\frac{27+4500+135+550.2}{2+4+6+...+16+18}\)= \(\frac{27+4500+135+1100}{\left(18+2\right).\left[\left(18-2\right):2+1\right]:2}\)= \(\frac{5762}{20.19:2}\)=\(\frac{5762}{190}\)=\(\frac{2881}{95}\)
rút gọn \(S=\frac{2+4500+135+550\times2}{2+4+6+...+16+18}\)
a,tính tổng : \(S=\dfrac{27+4500+135+550+2}{2+4+6+...+14+16+18}\)
b, So sánh : \(A=\dfrac{2006^{2006}+1}{2006^{2007}+1}v\text{à }B=\dfrac{2006^{2005}+1}{2006^{2006}+1}\)
27*4500+135*550*2/2+4+6+...+16+18
Tính nhanh
S=27+4500+135+550÷2/2+4+6+18
Tính tổng:
\(S=\frac{27+4500+135+550.2}{2+4+6+...+14+16+18}\)
1, tính S= 27+4500+135+550.2
2+4+6+...+14+16+18
Đề bài: Tính bằng cách hợp lí nhất
a) 26 . 108 - 26 . 12 / 32 - 28 + 24 - 20 + 18 - 12 + 8 - 4
b) 27 . 4500 + 135 . 550 . 2 / 2 + 4 + 6 + .........+ 14 + 16 + 18
c) 48 . 700 - 24 . 45 . 20 / 45 - 40 + 35 - 30 + 25 - 20 + 15 - 12 + 5
Mk ko biết cáh gạch phân số nên mk dùng / để gạch phân số
Ai nhanh mk tick nha! ^.^
Tính nhanh : S = 27 . 4500 + 135 . 550 . 2
27-4500+135+550.2
2+4+6+...+14+16+18
Hay rut gon ho minh nhe