Question

pls answer fast
urgent fast

Answer 1

4) value of 0÷ (-4/7) is 0.
Because 0÷ a for any number is always 0.

5)x = 7/15 and y = -2/21

So, x-y = 7/16 - (-2/21)
= 7/15 + 2/21
= (49+10)/105
= 59/105

Answer) x-y = 59/105

Answer 2

Hey friend,

(4)The value of 0÷(-4/7)

0÷(-4/7)

=0×7/-4

=0/4

=0

→0 divided by any number is always 0.
0/a=0

(5)The value of (x-y) where x=7/15 and y=-2/21

(x-y)=(7/15)-(-2/21)

=7/15+2/21

Take LCM,

LCM is 105,

=7/15×7/7 + 2/21×5/5

=49/105+10/105

=(49+10)/105

=59/105

Hope it helps