Question

Answer 1

d, 17/14

c, 6

Answer 2

5/6 + 8/21 = 17/14

60/12 - 6/12 + 18/12 = 72/12 = 6

Answer 3

d) 5/6+4/7x2/3=5/6+8/21=51/41
c) 15/3-2/4+6/4=9/2+6/4=6

Answer 4

\(\dfrac{5}{6}+\dfrac{8}{21}=\dfrac{105+48}{126}=\dfrac{153}{126}\)

\(\dfrac{15}{3}-\left(\dfrac{2+6}{4}\right)=\dfrac{15}{3}-\dfrac{8}{4}=\dfrac{60-24}{12}=\dfrac{36}{12}\)

Answer 5

d. = 5/6+ 8/21

= 17/14

c. = 6

Answer 6

Answer 7

5/6 + 4/7 x 2/3 = 5/6 + 8/21 = 13/28

Answer 8

c) \(\dfrac{15}{3}-\dfrac{2}{4}+\dfrac{6}{4}=\dfrac{60}{12}-\dfrac{6}{12}+\dfrac{18}{12}=\dfrac{72}{12}=6\)

d) \(\dfrac{5}{6}+\dfrac{4}{7}\times\dfrac{2}{3}=\dfrac{5}{6}+\dfrac{8}{21}=\dfrac{35}{42}+\dfrac{16}{42}=\dfrac{51}{42}=\dfrac{17}{4}\)