1000 / 200 is the same a s 100 / 20, which is the same as 10 / 2 ... when two numbers in a division share a number of trailing zeroes these can be cancelled out. 85,000.000,000 = 85 billion 200,000,000 = 200 million. As both numbers have 8 trailing zeroes, we can cancel them out. This leaves us with 850 and 2. Now the division problem is much easier. 850 /2 = 425. So 85 billion divided by 200 million = 425. -- edit -- In British English usage a billion has 12 zeroes. so the answer then would be 425,000
0.425
0.3778
42.5
0.2833
0.0388
0.0009
70.21 million
24.2857
0.85
about 85 billion barrels per day of oil 85 Million, not Billion barrels per day
1.4167
It is: 39/85 percent or about 0.5%