131 * 200 = 26,200
131/200 = 131 ÷ 200 = 0.655 or 65.5%
131 and 200 are coprime. Therefore, the fraction 131/200 cannot be simplified.
131/200 is in its simplest form.
655/1000 = 131/200
131/200
0.655
After 16.14 days, which is two half-lives of iodine-131 (since 16.14 days / 8.07 days = 2), the amount of iodine-131 remaining would be (200 , \text{g} \times \left(\frac{1}{2}\right)^2 = 50 , \text{g}). Therefore, the amount of iodine-131 that has decayed to xenon-131 would be (200 , \text{g} - 50 , \text{g} = 150 , \text{g}). Thus, after 16.14 days, there would be 150 grams of xenon-131 formed.
131/200 = 0.655
One.
Improper fraction: 131/20 Mixed number: 6 11/20
To determine how many times 8 goes into 131, we divide 131 by 8. The quotient is 16 with a remainder of 3. Therefore, 8 goes into 131 16 times with a remainder of 3.
65.5% without using a calculator !