Answer:
See below
Step-by-step explanation:
70/100 + 4/10 is equivalent to 70/100 + 40/100 which equals 110/100.
68/100 + 6/10 is equivalent to 68/100 + 60/100 which equals 128/100.
6/10 + 12/100 is equivalent to 60/100 + 12/100 which equals 72/100.
4/10 + 34/100 is equivalent to 40/100 + 34/100 which equals 74/100.
None of them equal 75/100, however if you were looking for 74/100 or 72/100, check above.