" ple "1:" Find "(3)/(7)+((-6)/(11))+((-8)/(21))+((5)/(22))

Solve using properties : (a) (3)/(7)+((-6)/(11))+((-8)/(21))+(5)/(25)

The expression (5(5)/(8))/(6(3)/(7)) of (6(7)/(11))/(9(1)/(8))-:(8)/(9)(2(3)/(11)+(13)/(22)) of (3)/(5) equals (a) 1 (b) (1)/(2)( c) (7)/(9)( d) (5)/(12)

If (3)/(7) + x +((-8)/(21)) +(5)/(22) =(-125)/(462) , then x is

Find the sum: (5)/(6)+(7)/(8)+(11)/(12)

Find the sum : (i) 5/4 + ((-11)/(4)) , (ii) 5/3 + 3/5 , (iii) (-9)/(10) + 22/15 (iv) (-3)/(-11) + 5/9 , (v) (-8)/(19) + ((-2))/(57) , (vi) (-2)/(3) + 0 (vii) -2'1/3 + 4'3/5

Express each of the following as a rational number of the form (p)/(q):(-8)/(3)+(-1)/(4)+(-11)/(6)+(3)/(8)-3( ii) (6)/(7)+1+(-7)/(9)+(19)/(21)+(-12)/(7)

Evaluate: a. 8 (2)/(7) + 11 (5)/(7) + 2 (1)/(7)

Find the product of: (-22)/( 11) and (-21)/( 11)

If A=[a_(i j)]=[(2, 3,-5),( 1, 4, 9),( 0, 7,-2)] and B=[b_(i j)]=[(2,-1),(-3, 4),( 1, 2)] then find a_(22)+b_(21) (ii) a_(11)b_(11)+a_(22)b_(22)