Question

Check the commutative property for addition and multiplication of rational numbers -10/11

Answer 1

Step-by-step explanation:

• let a, b and c are -10/11 , -11/11 and -12/11
• addition
• -10/11+(-11/11+(-12/11))= (-10/11+(-11/11))+12/11
• -10/11 -23/11=-21/11 -12/11
• -33/11=-33/11
• LHS=RHS
• multiplication
• -10/11 (-11/11 (-12/11))=(-10/11 (-11/11))-12/11
• -10/11×132/121=110/121× -12/11
• -1320/1331=-1320/1331
• LHS=RHS