Answer: 1747067797/2500000000
Explanation:
Rewrite the decimal number as a fraction with 1 in the denominator
0.6988271188=0.6988271188/1
Multiply to remove 10 decimal places. Here, you multiply top and bottom by 10 to the 10 power = 10000000000
0.6988271188/1 * 10000000000/10000000000 * 6988271188/10000000000