Question

Tính bắng hai cách:3/7* 16/33+16/33*4/7

Answer 1

\(\frac{3}{7}x\frac{16}{33}+\frac{16}{33}x\frac{4}{7}\)

\(C1:=\frac{16}{77}+\frac{64}{231}=\frac{16}{33}\)

\(C2:=\frac{16}{33}\left(\frac{3}{7}+\frac{4}{7}\right)=\frac{16}{33}.1=\frac{16}{33}\)

học tốt ~~~

Answer 2

C1:3/7×16/33+16/33×4/7

=48/231+64/231

=112/231

C2:3/7×16/33+16/33×4/7

=16/33×(3/7+4/7)

=16/33×7/7

=113/231

Answer 3

C1 : \(\frac{3}{7}\times\frac{16}{33}+\frac{16}{33}\times\frac{4}{7}\)

\(=\frac{16}{77}+\frac{64}{231}\)

\(=\frac{16}{33}\)

C2 : \(\frac{3}{7}\times\frac{16}{33}+\frac{16}{33}\times\frac{4}{7}\)

\(=\frac{16}{33}\times\left(\frac{3}{7}+\frac{4}{7}\right)\)

\(=\frac{16}{33}\times1\)

\(=\frac{16}{33}\)