Question

hy friends plz answer my questions

this is my first question so please answer correct

right answer will be mark as brainlist

Answer 1

Answer:

hii.

Step-by-step explanation:

given here

1) [ 7/5*(-3/12)]+[7/5*5/12]

=[ -(7/20) ]+[ 7/12]

=( -21+35)/60

= 14/60

= 7/30.

2)

-5/4*7/3*16/15*-9/14

= (-5/4* 16/15)* (7/3*-9/14)

= -20/15* -21/14

= -4/3*-3/2

= 2

3)

2/5*-3/7 -1/14-3/7*3/5

= -15/35 -1/14 - 9/35

=-24/35-1/14

=(-48-5)/70

= -53/70.

I hopes this is right and helpful for u.

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please marks brainiest. !!✌️✌️

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