Verify the closure property for addition and multiplication for the
-5/7and 8/9
rational numbers
Answers
Answered by
3
Answer:
-5/7
383
use cp
8/9
27
use cp
Answered by
2
Answer:
addition
-5/7+8/9
taking LCM of 7 and 9
9=3*3
7=7*1
LCM =3*3*7
Ans =63
therefore, we get,
=[(-5*9)+8*7]/63
=(-45+56)/63
=11/63
Subtraction
-5/7-8/9
taking LCM of 7 and 9
9=3*3
7=7*1
LCM =3*3*7
Ans =63
therefore, we get,
=[(-5*9)-(8*7)]/63
=[-45-(56)]/63
=(-45-56)/63
=-101/63
therefore it is ur solution
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