Question

\(\frac{3}{5}+\frac{7}{2}-\frac{4}{7}=\frac{247}{70}\)

Answer 1

3/5+7/2-4/2=6/10+35/10+20/10=6+35-20/10=21/10 nha bạn     !!!!!!!!!

Answer 2

= 6/10 + 35/10 - 20/10

=41/10 - 20/10

= 21/10 .

Answer 3

3/5 + 7/2 - 4/2 = 21/10

Answer 4

\(\frac{3}{5}+\frac{7}{2}-\frac{4}{2}=\frac{3}{5}+\left(\frac{7}{2}-\frac{4}{2}\right)=\frac{3}{5}+\frac{3}{2}=\frac{6}{10}+\frac{15}{10}=\frac{21}{10}=2\frac{1}{10}\)

Answer 5

21/10 nha bạn.chúc bạn học giỏi

Answer 6

3/5+7/2-4/2

=6/10+35/10-20/10

=6+35-20/10

=21/10

Answer 7

\(\frac{3}{5}+\frac{7}{2}-\frac{4}{2}\)

=\(\frac{3}{5}+\frac{3}{2}\)

=\(\frac{6}{10}+\frac{15}{10}\)

=\(\frac{21}{10}\)