Question

a. 7/12 - 3/4* 2/9                                                                                                       b.10/7-4/15: 2/5

 

Answer 1

7/12 - 1/6 = 7/12 - 2/12 = 5/12

10/7 - 2/3 = 16/21

Answer 2

a) = 7/12 - 1/6 = 5/12

b) = 10/7 - 2/3 = 16/21

Answer 3

\(a,\dfrac{7}{12}-\dfrac{3}{4}\times\dfrac{2}{9}=\dfrac{7}{12}-\dfrac{1}{6}=\dfrac{7}{12}-\dfrac{2}{12}=\dfrac{5}{12}\)

\(b,\dfrac{10}{7}-\dfrac{4}{15}:\dfrac{2}{5}=\dfrac{10}{7}-\dfrac{4}{15}\times\dfrac{5}{2}=\dfrac{10}{7}-\dfrac{2}{3}=\dfrac{30}{21}-\dfrac{14}{21}=\dfrac{16}{21}\)

Answer 4

a. 7/12 - 3/4* 2/9   = 7/12 - 1/6 = 5/12

b. 10/7-4/15: 2/5 = 10/7 -  2/3 = 16/21