मूल्यांकन करें: ((15)/(243)xx(-27)/(75))+((8)/(-66)xx(-22)/(40)) | 7 | परिमेय संख्याएँ | गणित | मैं सी...

The value of (33)/(40)+(1)/(5)[(4)/(5)-(1)/(5)xx((7)/(8)-(5)/(4))] is :

Evaluate: (((8)/(9))^(2)xx(-3)^(7)xx((1)/(2))^(3))/((27)^(2)xx64)

(5/9xx-4/7-:8/-27)xx(3/-4)

Name the property of multiplication shown by each of the following statements: (i) (-12)/(5) xx (3)/(4)=(3)/(4)xx (-12)/(5) (ii) (-8)/(15) xx 1=(-8)/(15) (iii) ((-2)/(3) xx (7)/(8)) xx (-5)/(7) = (-2)/(3) xx ((7)/(8) xx (-5)/(7)) (iv) (-2)/(3) xx 0=0 (v) (2)/(5) xx ((-4)/(5) +(-3)/(10)) = ((2)/(5) xx (-4)/(5)) +((2)/(5)xx (-3)/(10))

Find the value of (-15)+4-:(5-3) 2. (-40)xx(-1)+(-28)-:7

15 1/2-(12/5xx5/8+(7-:1 3/4))xx2=