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a)\(\frac{5}{6}=\frac{1}{2}+\frac{1}{3}\)
b)\(\frac{7}{12}=\frac{1}{2}+\frac{1}{12}=\frac{1}{3}+\frac{1}{4}\)
c)\(\frac{7}{8}=\frac{1}{8}+\frac{6}{8}\)
\(\frac{5}{6}=\frac{1}{2}+\frac{1}{3}\)
\(\frac{7}{12}=\frac{1}{3}+\frac{1}{4}\)
a, \(\dfrac{5}{6}=\dfrac{1}{2}+\dfrac{1}{3}\)
b, \(\dfrac{7}{8}=\dfrac{1}{2}+\dfrac{1}{4}+\dfrac{1}{8}\)
c, \(\dfrac{6}{5}=\dfrac{1}{1}+\dfrac{1}{5}\)
d, \(\dfrac{8}{7}=\dfrac{1}{1}+\dfrac{1}{7}\)
\(a,\dfrac{5}{6}=\dfrac{1}{2}+\dfrac{1}{3}\\ b,\dfrac{7}{8}=\dfrac{1}{8}+\dfrac{1}{4}+\dfrac{1}{2}\\ c,\dfrac{6}{5}=\dfrac{1}{1}+\dfrac{1}{5}\\ d,\dfrac{8}{7}=\dfrac{1}{1}+\dfrac{1}{7}\)
1/ Vi tong cua hai so la so tu nhien co hai chu so nen tong cua tu so va mau so la 99.Suy ra day la bai toan ve tong hieu
Vay mau so la ( tong+hieu /2)
99+11/2=55
Tu so la (tong-hieu/2)
99-11/2=44
Suy ra phan so tren se la 44/55
\(\frac{5}{6}=\frac{1}{2}+\frac{1}{3}\)
\(\frac{7}{12}=\frac{1}{3}+\frac{1}{4}\)
\(\frac{7}{8}=\frac{1}{1}-\frac{1}{8}\)
Tttiiicckkk nha
a) \(\frac{5}{6}=\frac{1}{3}+\frac{1}{2}\)
b) \(\frac{7}{12}=\frac{1}{12}+\frac{1}{2}\)
c) \(\frac{7}{8}=\frac{1}{2}+\frac{3}{8}\)
\(\frac{5}{6}=\frac{3}{6}+\frac{2}{6}=\frac{1}{2}+\frac{1}{3}\)
\(\frac{7}{12}=\frac{6}{12}+\frac{1}{12}=\frac{1}{2}+\frac{1}{12}\)
\(=\frac{4}{12}+\frac{3}{12}=\frac{1}{3}+\frac{1}{4}\)
\(\frac{7}{8}=\frac{4}{8}+\frac{2}{8}+\frac{1}{8}=\frac{1}{2}+\frac{1}{4}+\frac{1}{8}\)
5/6=1/2+1/3
7/12=1/2+1/12
7/8=1/2+1/4+1/8