Why is x / 7 roughly approximate to 14 * x / 100?
saged
because 1/7 ~ 14/100
>>8449950
because 7 8 9
>>8449950
because 1/7=7/49=14/98~=14/100
14/100 = 0.14
1/7 ≈ 0.142857143
It's an approximation that may be good enough depending on how accurate you need to be.
It's also basic middle school pre-algebra.
Or more transparently,
[math] 7 \cdot \dfrac{14}{100} = \dfrac{98}{100} = 0.98 \sim 1 [/math]