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[" (i) "(-1)/(5)=(8)/(x)," (ii) "(7)/(-3...

[" (i) "(-1)/(5)=(8)/(x)," (ii) "(7)/(-3)=(x)/(6)," (iii) "(3)/(5)=(x)/(-25)],[" (iv) "(13)/(6)=(-65)/(" い ")," (v) "(16)/(-4)=-4," (vi) "(-48)/(-2)]

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Find x such that: (i) frac(-1)(5)=frac(8)(x) (ii) frac(7)(-3)=frac(x)(6) (iii) frac(3)(5)=frac(x)(-25) (iv) frac(13)(6)=frac(-65)(x) (v) frac(16)(x)=-4 (vi) frac(-48)(x)=2

Evaluate : (i) (3)/(4)-(4)/(5) (ii) -3-(4)/(7) (iii) (7)/(24)-(19)/(36) (iv) (14)/(15)-(13)/(20) (v) (4)/(9)-(2)/(-3) (vi) (7)/(11)- (-4)/(-11) (vii) (-5)/(14) -(-2)/(7) (viii) (-5)/(-8)-(-3)/(4)

Find each of the following products: {:((i)(3)/(5)xx(-7)/(5),(ii)(-9)/(2) xx (5)/(4),(iii)(-6)/(11) xx (-5)/(3)),((iv) (-2)/(3) xx (6)/(7),(v)(-12)/(5)xx(10)/(-3),(vi) (25)/(-9)xx(3)/(-10)), ((vii) (5)/(-18)xx(-9)/(20),(viii) (-13)/(15) xx (-25)/(26), (ix) (16)/(-21)xx(14)/(5)), ((x) (-7)/(6) xx 24,(x i) (7)/(24)xx (-48), (x ii) (-13)/(5)xx(-10)):}

Add the following rational numbers: {:((i) (-2)/(5) and (4)/(5),(ii) (-6)/(11) and (-4)/(11) , (iii) (-11)/(8) and (5)/(8)), ((iv) (-7)/(3) and (1)/(3),(v) (5)/(6) and (-1)/(6),(vi) (-17)/(15) and (-1)/(15)):}

Subtract : (i) (3)/(4) from (1)/(3) (ii) (-5)/(6) from (1)/(3) (iii) (-8)/(9) from (-3)/(5) (iv) (-9)/(7) from -1 (v) (-18)/(11)from1 (vi) (-13)/(9) from0 (vii) (32)/(13) from (-6)/(5) (viii) -7 from (-4)/(7) (ix) (5)/(9) from (-2)/(3) (x) 5 from (-3)/(5)

Find each of the following products: (i) (x - 4)(x - 4) (ii) (2x - 3y)(2x - 3y) (iii) ((3)/(4) x - (5)/(6) y) ((3)/(4)x - (5)/(6) y) (iv) (x - (3)/(x)) (x - (3)/(x)) (v) ((1)/(3) x^(2) - 9) ((1)/(3) x^(2) - 9) (vi) ((1)/(2) y^(2) - (1)/(3) y) ((1)/(2) y^(2) - (1)/(3) y)

Divide :(-3)/(4)by-6 (ii) (2)/(3)by(-7)/(12)-4by(-3)/(5) (iv) (-3)/(13)by(-4)/(65)

Solve (i) 2-(3)/(5)(ii)4+(7)/(8)(iii)(3)/(5)+(2)/(7)(iv)(9)/(11)-(4)/(5)(v)(7)/(10)+(2)/(5)+(3)/(2)(vi)(2)(2)/(3)+(3)(1)/(2) (vii) (8)(1)/(2)-(3)(5)/(8)

Find each of the following products: (i) (x + 3) (x - 3) (ii) (2x + 5)(2x - 5) (ii) (8 + x)(8 - x) (iv) (7x + 11y) (7x - 11y) (v) (5x^(2) + (3)/(4) y^(2)) (5x^(2) - (3)/(4) y^(2)) (vi) ((4x)/(5) - (5y)/(3)) ((4x)/(5) + (5y)/(3)) (vii) (x + (1)/(x)) (x - (1)/(x)) (viii) ((1)/(x) + (1)/(y)) ((1)/(x) - (1)/(y)) (ix) (2a + (3)/(b)) (2a - (3)/(b))