Question

tính

3 phần 5 + 9 phần 35

Answer 1

3/5+9/35

=21/35+9/35

=30/35

=6/7

Answer 2

\(3/5+9/35=21/35+9/35=30/35=6/7\) nhé

Answer 3

\(\dfrac{3}{5}+\dfrac{9}{35}=\dfrac{21}{35}+\dfrac{9}{35}=\dfrac{30}{35}\)\(=\dfrac{6}{7}\)

Answer 4

\(\dfrac{3\times7}{5\times7}+\dfrac{9}{35}=\dfrac{21}{35}+\dfrac{9}{35}=\dfrac{30}{35}=\dfrac{6}{7}\)

Answer 5

6/7

Answer 6

\(\dfrac{3}{5}+\dfrac{9}{35}=\dfrac{21}{35}+\dfrac{9}{35}=\dfrac{30}{35}\)

Answer 7

\(\dfrac{3}{5}+\dfrac{9}{35}=\dfrac{21}{35}+\dfrac{9}{35}=\dfrac{30}{35}=\dfrac{6}{7}\)

Answer 8

3/5+9/35

= 21/35+9/35

= 30/35

= 6/7