Question

please solve this sum with working:

Answer 1

( 5 ).
$(5 \div ( - 7) + 1 \div 2) \times3 \div 4 = 5 \div ( - 7) \times (1 \div 2 + 3 \div 4)\\ (- 10 + 7) \div 14 \times 3 \div 4 = - 5 \div 7 \times (2 + 3) \div 4 \\ - 9 \div 56 = - 25 \div 28$
No, this set of rational numbers is not associative.

( 6).
$(2 \div 3 + 1 \div 6) \times - 2 \div 3 = 2 \div 3(1 \div 6 - 2 \div 3) \\ 5 \div 6( - 2 \div 3) = 2 \div 3( - 3 \div 6) \\ - 10 \div 18 = - 6 \div 18$
No, this set of rational numbers is not associative.