to verify X+y=y+X
X=40/99 y=20
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Answer:
Commutative property
Step-by-step explanation:
if they have common factors you can simplify them.
I hope you understand
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Answer:
x+y=y+x
This property is called as cumulative property
40/99+20=20+40/99
40+1980/99=1980+40/99
2020/99=2020/99
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