`2 1/4+1 1/3-4 1/2=?` `-1 1/(12)` (b) `(11)/(12)` (c) `-(11)/(12)` (d) `1 1/(12)` (e) None of these

(5 1/4-3 1/3)= (12)/(23) (b) 2 1(11)/(12) (d) (11)/(12)

The value of (1-(1)/(3^(2)))(1-(1)/(4^(2)))(1-(1)/(5^(2)))ddot M(1-(1)/(11^(2)))(1-(1)/(12^(2))) is (11)/(20) (b) (13)/(15) (c) (13)/(18) (d) (15)/(16) (e) None of these

(3)/(8) is what part of (1)/(12)?(3)/(7)(b)(1)/(12) (c) (4)/(3) (d) None of these

2(3)/(4)-:2(2)/(3)-:1(1)/(12)=?(39)/(48) (b) 1(1)/(4) (c) (169)/(144) (d) None of these

12(1)/(3)-(8)/(9)+(11)/(3)-4(11)/(9)=?

(1)/((2(1)/(3)))+(1)/((1(3)/(4))) is equal to (a) (7)/(14) (b) (12)/(49) (c) 4(1)/(12) (d) None of these

Prove that (1)/(10!) +(1)/(11!)+(1)/(12!)=(145)/(12!).

Solve 1(4)/(5)+20-280-:25=?8(1)/(5)(b)9(1)/(2) (c) 11(1)/(2) (d) 10(3)/(5) (e) 12(1)/(5)

The value of sin^(-1)((3)/(sqrt(73)))+cos^(-1)((11)/(sqrt(146)))+cot^(-1)sqrt(3) is (A)(5 pi)/(12) ( textrmB ) (17 pi)/(12) (C) (7 pi)/(12) (D) None of these

(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