Question

alguém sabe preciso entregar hojeeeee!!!!!! ​

Answer 1

a) 15/20 +1 = 15/20 +20/20 =35/20 = 7/4

b) 13/8 + 9/16 = 26/16 + 9/16 = 35/16

c) 1/3 - 1/2 = 2-3/6 = -1/6

d) 8/27 - 9/25 = 25*8 - 27*9/675 = -43/675