Question

помогите пж!!!!!!!!!!!!

Answer 1

9)-8+4 5/22=-7 22/22+4 5/22= -3 17/22 
10)-2 9/20 + 5 7/30 = -2 27/60 + 5 14/60= -2 27/60 + 4 74/60= 2 47/60
11)-5 1/4 + 1 3/8=-5 2/8 +1 3/8 = -4 10/8 +1 3/8= -3 7/8
12)4 3/7 +(-8 9/14)=4 6/14+(-8 9/14)= -4 3/14