Eleven out of fifteen plus () one in fifteen equals the smallest prime number
The smallest prime number is 2
(2-11/15)/(1/15)=30-11=19
Add 19 1 / 15
What's 11 out of 25?
11/25=0.44
Hope to solve the problem in time
If you are satisfied, please [adopt as a satisfactory answer]
99×(1-1/2)×(1-1/3)×(1-1/4)×…… Simple calculation of × (1-1 / 99)
99×(1-1/2)×(1-1/3)×(1-1/4)×…… ×(1-1/99)
=99×1/2×2/3×3/4…… ×98/99
=99×(1/2×2/3×3/4…… ×98/99)
=99×1/99
=1
Calculation: 1-2 + 3-4 + 5-6 +99-100 & nbsp; & nbsp; (required to write the necessary process)
1-2+3-4+5-6… +99-100 =(1-2)+(3-4)+(5-6)+… +(99-100)=-1-1-1-1-… -1=-50.