Cach 1 \(\frac{3}{4}\times\frac{1}{2}\times2\)
= \(\frac{3}{4}\times\frac{1}{2}\times\frac{2}{1}\)
= \(\frac{3\times1\times2}{4\times2\times1}\)
= \(\frac{6}{8}\)
= \(\frac{3}{4}\)
Cach 2 \(\frac{3}{4}\times\frac{1}{2}\times2\)
= \(\frac{3}{4}\times\frac{1}{2}\times\frac{2}{1}\)
= \(\frac{3\times1\times2}{4\times2\times1}\)
=\(\frac{3}{4}\)
Đoạn này cần gach nhưng ở đây ko có gạch chéo nên bạn cố gắng hiểu nhé!
Chúc bạn học giỏi
Nhớ cho mình 1 k đúng nhé!
3/4 x 1/2 x 2
C1 : = 3/8 x 2
= 6/8
= 3/4
C2 : = 3/4 x 2/2
= 3/4 x 1
= 3/4
3/4x1/2x2=3/4x(1/2x2)=3/4x1=3/4
3/4x1/2x2=3/4x2x1/2=3/2x1/2=3/4
hok ............
c1.\(\frac{3}{4}\)\(\times\frac{1}{2}\)\(\times2\)\(=\)\(\frac{3}{8}\)\(\times2\)
\(=\)\(\frac{3}{4}\)
c2.\(\frac{3}{4}\)\(\times\)\(\frac{1}{2}\)\(\times2\)
\(=\)\(\frac{3}{4}\)\(\times\)\((\)\(\frac{1}{2}\)\(\times2\)\()\)
\(=\)\(\frac{3}{4}\)\(\times1\)
\(=\)\(\frac{3}{4}\)