Question

efetue as adicoes quando possivel

Answer 1

a) 5/18 +7/18= 12/18 = 2/3

b) 27/35 + 8/35= 35/35= 1

c) 13/30 + 11/12= (26+55)/60 = 81/60= 27/20

d) 17/24 + 101/144= (102+101)/144 = 203/144

e) 12/19 - 9/20= (240-171)/380 = 69/380

f) 9/25 - 11/100= (36-11)/100 = 25/100 = 1/4

g) 35/12 - 28/15= (175-112)/60 = 63/60 = 21/20