Question

Please it's very urgent, because Tomorrow is my exam
Simplify (6¯¹+8¯¹)+(3¯¹+2¯¹)¯¹

Answer 1

Hi Mate!!!

x^-1. = 1/x. in. general

(1/6 + 1/8 ) + ( 1/3 +1/2) ^-1

(14 / 48 ) + ( 5/6) ^-1

7 / 24 + 1 /(5/6)

7 / 24 + 6/5. { 1 / (x/y) = y/x}


35 + 144 / 120

179/120

Answer 2

$Given:(6^{-1}+8^{-1})+ (3^{-1}+2^{-1})^{-1}$

$=>\frac{1}{6}+\frac{1}{8}+(\frac{1}{3}+\frac{1}{2})^{-1}$

$=>\frac{1}{6}+\frac{1}{8}+(\frac{5}{6})^{-1}$

$=>\frac{1}{6}+\frac{1}{8}+\frac{6}{5}$

LCM of 6,8,5 = 120.

$=>\frac{20}{120}+\frac{15}{120}+\frac{144}{120}$

$=> \frac{20+15+144}{120}$

$=> \boxed{\frac{179}{120}}$

Hope it helps!