Question

16/19+(-17/21)=-17/21+16/19 verify it​

Answer 1

16/19-17/21 | -17/21+16/19

=336-323/19×21 | =-323+336/19×21

=13/399 | =13/399

L.H.S=R.H.S

Hence, verified

Answer 2

Answer:

$\frac{13}{133} =\frac{13}{133}$

Step-by-step explanation:

• $\frac{16}{19}+(\frac{-17}{21} )=\frac{-17}{21}+\frac{16}{19}$
• $\frac{16}{19}-\frac{17}{21}=\frac{-17}{21}+\frac{16}{19}$
• [/tex]$\frac{16*21-17*19}{399}$=$\frac{-17*19+16*21}{399}$                 LCM of 19 and 21 =399
• $\frac{336-323}{399}=\frac{-323+3}{399}$
• $\frac{13}{399}=\frac{13}{399}$
• hence proved