Question

get 100 point's if you answer the question but not the messy one... ok
here the question:-



Verify the property x+y=y+x of Rational number by using
x = -3\7
y = 20\21

help and get points​

Answer 1

Given:-

x=$\frac{-3}{7}$

y=$\frac{20}{21}$

$\rule{200}{1}$

To Prove:-

Whether x+y=y+x?

$\rule{200}{1}$

Proof:-

•Property↓•

→x+y=y+x

•Putting the Values•

→$\frac{-3}{7}$+$\frac{20}{21}$=$\frac{20}{21}$+$\frac{-3}{7}$

•Taking LCM•

→$\frac{-3×3}{7×3}$+$\frac{20}{21}$=$\frac{20}{21}$+$\frac{-3×3}{7×3}$

→$\frac{-9}{21}$+$\frac{20}{21}$=$\frac{20}{21}$+$\frac{-9}{21}$

→$\frac{11}{21}$=$\frac{11}{21}$

→LHS=RHS

•Hence Proved•

$\rule{200}{2}$

Answer 2

Step-by-step explanation:

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