Question

 

Answer 1

\(3-\dfrac{2}{7}-\dfrac{1}{3}-\dfrac{5}{21}=\dfrac{63-6-7-5}{21}=\dfrac{45}{21}=\dfrac{15}{7}\)

Answer 2

15/7

Answer 3

\(=\dfrac{63}{21}-\dfrac{6}{21}-\dfrac{7}{21}-\dfrac{5}{21}=\dfrac{45}{21}=\dfrac{15}{7}\)

Answer 4

= 19/7- 1/3- 5/21

= 50/21- 5/21

= 15/7

Answer 5

Answer 6

63/21 - 6/21 - 7/21 - 5/21 = 45/21 = 15/7

Answer 7

Answer 8

\(3-\dfrac{2}{7}-\dfrac{1}{3}-\dfrac{5}{21}\)

=\(\dfrac{19}{7}-\dfrac{1}{3}-\dfrac{5}{21}\)

=\(\dfrac{50}{21}-\dfrac{5}{21}\)

=\(\dfrac{15}{7}\)

Answer 9

15/7

Answer 10

\(\dfrac{3}{1}-\dfrac{2}{7}-\dfrac{1}{3}-\dfrac{5}{21}=\dfrac{21-2}{7}=\dfrac{19}{7}-\dfrac{1}{3}=\dfrac{57-7}{21}=\dfrac{50}{21}-\dfrac{5}{21}=\dfrac{45}{21}\)

Answer 11

=15/7