Answer:
18/25
Explanation:
2/100: left alone. You can reduce the answer later.
7/10: Multiply numerator and denominator by 10
7*10 = 70
10*10 = 100
Result: 70/100
Now add
2/100 + 70/100 = 72/100
Now reduce. Top and bottom can be divided by 4
72/4 = 18
100/4 = 25
Answer 18/25