Compute: ` 1/(5!)+1/(6!)+1/(7!)`

Tell which property allows you to compute (1)/(5)xx[(5)/(6) xx (7)/(9)] as [(1)/(5) xx (5)/(6)]xx(7)/(9)

n if (1)/(4l)+(1)/(5!)+(1)/(6!)=(n)/(7!)

Tell what property allows you to compute (1)/(3)xx(6xx(4)/(5)) as ((1)/(3)xx6)xx(4)/(3)

(3)/(4)(1+(1)/(3))(1+(2)/(3))(1-(2)/(5))(1+(6)/(7))(1-(12)/(13))=?(1)/(5)( b )(1)/(6)(c)(1)/(7) (d) None of these

Evaluate 8-8xx(2(1)/(5)-1(2)/(7))/(2-(1)/(6-(1)/(6)))

1.Compute the following (30!)/(28!),(11!-10!)/(9!),LCM(6!,7!,8!)

Solve by factorization: (1)/(x-1)-(1)/(x+5)=(6)/(7),x!=1,-5

Simplify: 7+7/4+5 1/6

Simplify: 7/(18)+5/6+1 1/(12)

The value of 6((1)/(5)) - [4((1)/(2)) - {""((1)/(6)) - (""((3)/(5)) + ""((3)/(10)) - ""((7)/(15)))}] is