7/2 + 7/2 x 9 =7/2 + 63/2
= 70/2 = 35
TI CK cho mình nhé bạn
\(\frac{7}{2}+\frac{7}{2}\cdot9=\frac{7}{2}+\frac{63}{2}=\frac{70}{2}=35\)
\(\frac{7}{2}\)+ \(\frac{63}{2}\)= \(\frac{70}{2}\)
\(\frac{7}{2}+\frac{7}{2}\times9\)
\(=\frac{7}{2}+\frac{63}{2}\)
\(=\frac{7+63}{2}\)
\(=\frac{70}{2}=35\)
7/2+7/2*9=7/2*(9+1).
=7/2*10.
=3,5*10.
=35.
tk mk nha các bn.
-chúc ai tk mk học giỏi-
\(\frac{7}{2}+\frac{7}{2}\)x 9 = \(\frac{7}{2}+\frac{63}{2}\)
= \(\frac{7+63}{2}\)
= \(\frac{70}{2}\)= 35
7/2x9=7/2x9/1=63/2+7/2=70/2=35/1=35
\(\frac{7}{2}+\frac{7}{2}x9\)
\(=\frac{7}{2}+\frac{63}{2}\)
\(=\frac{7+63}{2}\)
\(=\frac{70}{2}\)
\(=35\)