Viết phân số \(\frac{1}{5}\)thành tổng của ba phân số Ai Cập khác nhau.
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4 tháng 3 2018
Ta có:
a. 3/4 = 1+2/4= 1/4+1/2
b. 3/4 = 1/2+2/8 +4/16= 1/2+1/2+1/2
c. 3/4=1/2+2/4+2/8+0+1/4
AK
8 tháng 4 2018
a ) 28% = 0 , 28
7% = 0 , 07
235% = 2 , 35
b ) 5/8 = 1/4 + 3/8
5/8 = 1/2 + 1/8
Chúc bạn học tốt !!!
TK
8 tháng 4 2018
a) 28% = \(\frac{7}{25}\)
7% = \(\frac{7}{100}\)
235% = \(\frac{47}{20}\)
b) C1: \(\frac{3}{8}+\frac{1}{4}\)
C2: \(\frac{1}{8}+\frac{1}{2}\)
Tk hộ -..-
VD
1
HT
8 tháng 8 2017
\(\frac{7}{8}=\frac{1}{8}+\frac{2}{8}+\frac{4}{8}=\frac{1}{8}+\frac{1}{4}\)\(+\frac{1}{2}\)
CC
3
23 tháng 2 2016
Ta có:\(\frac{7}{8}=\frac{1}{8}+\frac{2}{8}+\frac{4}{8}=\frac{1}{8}+\frac{1}{4}+\frac{1}{2}\)
Vậy \(\frac{7}{8}=\frac{1}{2}+\frac{1}{4}+\frac{1}{8}\)
20 tháng 2 2022
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2 tháng 4 2017
\(\frac{1}{3}\)+ \(\frac{7}{24}\)
\(\frac{1}{4}\)+ \(\frac{3}{8}\)
~~ tk mk nha ~`
Ai tk mk mk tk lại ~`
Ai kb vs mk đi ~~^^
Bài làm
Ta có: \(\frac{1}{5}=\frac{3}{15}\)
Do đó: \(\frac{1}{5}=\frac{3}{15}=\frac{1}{15}+\frac{1}{15}+\frac{1}{15}\)
Vậy ba phân số Ai Cập khác nhau là \(\frac{1}{15},\frac{1}{15},\frac{1}{15}\)
# Chúc bạn học tốt #