solve the one which are tick from no. 3
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Answered by
1
a=3/10,b=-11/15,c=10/-9
we have to show that
a+(b+c)=(a+b)+c
lhs =a+(b+c)
=3/10+(-11/15-10/9)
= 3/10 + (-33-50)/45
=3/10 -83/45
=(27-166)/90
=-139/90
rhs =(3/10-11/15)-10/9
= (9-22)/30 -10/9
=-13/30 -10/9
=(-39 -100)/90
=-139/90
∴lhs = rhs
we have to show that
a+(b+c)=(a+b)+c
lhs =a+(b+c)
=3/10+(-11/15-10/9)
= 3/10 + (-33-50)/45
=3/10 -83/45
=(27-166)/90
=-139/90
rhs =(3/10-11/15)-10/9
= (9-22)/30 -10/9
=-13/30 -10/9
=(-39 -100)/90
=-139/90
∴lhs = rhs
nitz2:
please do those which are tick in 5,6 and 7also
ok let me see
post it one by one in brainly
it is alrdy there in dis image
Answered by
1
(3.1) 3/4+(-2)/5=(-2)/5+3/4
7/20= 7/20
As the sums are same it verifies commutative property of rational numbers.
(3.3)-8+(-11)/(-12)=(-11)/(-12)+(-8)
-85/12= -85/12
As the sums are equal it verifies commutative property of rational numbers.
Plz mark me as brainliest
7/20= 7/20
As the sums are same it verifies commutative property of rational numbers.
(3.3)-8+(-11)/(-12)=(-11)/(-12)+(-8)
-85/12= -85/12
As the sums are equal it verifies commutative property of rational numbers.
Plz mark me as brainliest
bro that will take lot time to solve so sorry
......
how do u get 7/20 plz explain
U can ads
add*
u will Add then u will get same thing
First u take out LCM of denominator
then make the give fractions like
then add them
and u will get 7/20
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