Answer:
I can't tell if that's 12 and 15 or 1 and 2 and 5 so i did both of them bellow
Step-by-step explanation:
12 + 15 = 27 so false
1+2+1+5 = 9 true
3/11
-2/45
-3/5 - (-5/9)
Subtracting a negative is like adding
-3/5 + 5/9
Get a common denominator of 45
-3/5*9/9 + 5/9 *5/5
-27/45 + 25/45