As a decimal 4/15 = 0.2666667 As a decimal 3/10 = 0.3 [talk about close] 3/10 is bigger.
You could take an average to find something between 4/15 and 3/10 1/2(4/15 + 2/10) 1/2(8/30 + 6/30) 1/2(14/30) 1/2(7/15) 7/30 is between the two given numbers..
The scientific notation of any number is given by :
a is any real no and b is any integer
The scientific notation of 345,000,000 should be but Jorden wrote 34.5×10⁷. He is incorrect. He should have shifted decimal before 4 such that power of 10 becomes 8.