Question

\(\frac{7}{7}+\frac{7}{7}-\frac{7}{7}+\frac{5}{7}=?\)

Answer 1

=12/7

Answer 2

\(\frac{12}{7}\)nghe bn

Answer 3

7/7 + 7/7 - 7/7 + 5/7

= 1 + 1 - 1 + 5/7

= 2 - 1 + 5/7

= 1 + 5/7

= 12/7

chúc bạn học tốt nhé !

Answer 4

\(\frac{7}{7}+\frac{7}{7}-\frac{7}{7}+\frac{5}{7}=\frac{12}{7}\)

Answer 5

\(\frac{7}{7}+\frac{7}{7}-\frac{7}{7}+\frac{5}{7}\)

\(=\frac{7}{7}+0+\frac{5}{7}\)

\(=\frac{7}{7}+\frac{5}{7}\)

\(=\frac{12}{7}\)

Answer 6

7/7+7/7-7/7+5/7

=1+1-1+5/7

=1+5/7

=12/7

Answer 7

7/7 +7/7 -7/7 +5/7 = 12/7

Answer 8

\(\frac{7}{7}+\frac{7}{7}-\frac{7}{7}+\frac{5}{7}\)

\(=\frac{7}{7}+\frac{5}{7}\)

\(=\frac{12}{7}\)

Answer 9

7/7 +7/7 - 7/7 + 5/7

= ( 7/7 x 2 ) - 7/7 + 5/7 

= 14/7 - 7/7 + 5/7

= 7/7 + 5/7

= 12/7