Question

please help please help​

Answer 1

in each case we will take the lcm

a. lcm of 6 and 4 is 12

-10+6/12 = -4/12 = -1/3

so the answer of number a is -1/3

b. lcm of 5 and 6 is 30.

12+(-25)/30 = -13/30

so the answer of b is -13/30

c. lcm of 15 and 10 is 30

-4+-27/30 = -31/30

so the answer of c is -31/30

d. lcm of 5 and 9 is 45

15+25/45 = 35/45 = 7/9

so the answer of d is 7/9

e . lcm of 5 ,7, 4 is 140

42+(-112+140)/140 = 70/140 = 1/2

so the answer of option e is 1/2