Water Saving

Algebra Level 3

We know that 70%70\% of earth's surface is covered with water out of which 97%97\% is salt water. But, 75%75\% of the fresh water available is trapped in a form of ice. So, the part of the total earth's surface that actually contains liquid fresh water is given by ab\dfrac{a}{b}, where aa and bb are coprime positive integers, find the value of a+ba+b.


SAVE WATER,SAVE LIFE\large \text{SAVE} \ \color{#3D99F6}{\text{WATER}} , \text{SAVE} \ \color{#D61F06}{\text{LIFE}}
Inspired by my geography book
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