Question

simplify please give me only 1,2,3 please please if u know only one please give ​

Answer 1

Answer:

question 1

-8/15+2*-1/-3*-1

LCM=15 therefore (-8-10)/15=-18/15=-6/5

question 2

-7/10+13*-1/-15*-1+27/20

LCM =60therefore (-42-52+81)/60=(-94+81)/60 =-13/60

question 3

let-1be-1/1

7*-1/-9*-1+11/12

LCM=36

(-36-28+33)/36=(-64+33)/36=-31/36