Question

rut gon roi tinh :

15/25+6/21

 

Answer 1

\(\frac{15}{25}=\frac{15:5}{25:5}=\frac{3}{5}\); \(\frac{6}{21}=\frac{6:3}{21:3}=\frac{2}{7}\)

\(\frac{3}{5}+\frac{2}{7}=\frac{31}{35}\)

Answer 2

\(\frac{15}{25}+\frac{6}{21}=\frac{3}{5}+\frac{2}{7}=\frac{21}{35}+\frac{10}{35}=\frac{31}{35}\)

Answer 3

15/25+6/21

ta có:

15/25=15:5/25:5=3/5

6/21=6:3/21:3=2/7

3/5+2/7=31/35

tick nha

Answer 4

15/25+6/21

ta có:

15/25=15:5/25:5=3/5

6/21=6:3/21:3=2/7

3/5+2/7=31/35

Answer 5

Rút gọn : 15/25=3/5+6/21=3/7

=3/5+3/7

=21/35+15/35

=36/35

Học tốt nha !

Answer 6

Rút gọn : 15/25=3/5+6/21=2/7

=3/5+2/7

=21/35+10/35

=31/35

Học tốt nha bạn!

Answer 7

Chịu😋