a, 2/3+1/2+1/6
=4/6+3/6+1/6
=4/3
b, 5/12+5/6-3/4
=10/24+20/24-18/24
=1/2
c, 1/3*3/5*2/5
=(1*3*2)/(3*5*5)
=2/25
d, 15/16:3/8*3/4
= 15/16*8/3*3/4
= 15/8
a) \(\frac{2}{3}\)+\(\frac{1}{2}\)+\(\frac{1}{6}\) = \(\frac{4}{6}\)+\(\frac{3}{6}\)+\(\frac{1}{6}\) =\(\frac{8}{6}\) =\(\frac{4}{3}\)
b)\(\frac{5}{12}+\frac{5}{6}-\frac{3}{4}\)=\(\frac{5}{12}+\frac{10}{12}-\frac{9}{12}\)=\(\frac{6}{12}\)= \(\frac{1}{2}\)
c) \(\frac{1}{3}\cdot\frac{3}{5}\cdot\frac{2}{5}\) =\(\frac{6}{75}\)=\(\frac{2}{25}\)
a,2/3+1/2+1/6=1.33
b,5/12+5/6-3/4=0.5
c,1/3x3/5x2/5=0.08
d,15/16:3/8x3/4=1.875
\(a,\)\(\frac{2}{3}+\frac{1}{2}+\frac{1}{6}\)\(=\frac{4}{6}+\frac{3}{6}+\frac{1}{6}\)\(=\frac{4}{3}\)
\(b,\)\(\frac{5}{12}+\frac{5}{6}-\frac{3}{4}\)\(=\frac{5}{12}+\frac{10}{12}-\frac{9}{12}\)\(=\frac{1}{2}\)
\(c,\)\(\frac{1}{3}\times\frac{3}{5}\times\frac{2}{5}\)\(=\frac{2}{25}\)
\(d,\)\(\frac{15}{16}:\frac{3}{8}\times\frac{3}{4}\)\(=\frac{15}{16}\times\frac{8}{3}\times\frac{3}{4}\)\(=\frac{15}{8}\)
Banh Bao Tong
