Question

.Simplify,
(a) - 2/5 + 3/15 - 7/10​

Answer 1

Answer:

-2/5 + 3/15 -7/10

= -2*6/5*6 + 3*2/15*2 -7*3/10*3

=( -12+6-21)/30

= (-33+6)/30

=-27/30

=-9/10

hope it helps you

Answer 2

YOUR ANSWER IS ATTACHED ABOVE.....I HAVE GIVEN U 2 RULES ALSO ........SO HOPE IT WILL HELP U........

PLEASE MARK AS BRAINLIEST.......

STEP BY STEP EXLANATION.......

BUT THERE IS ONE SHORTCUT ALSO :

-2+3-7/30(L.C.M of denominators)

=15/30

=1/2