New York is two-thirds as populated as all of New England. If New England has 2100000 people, calculate the combined population of both states.
New York is two-thirds as populated as all of New England, meaning there are 2/3*2100000 = 
<gadget id="calculator">2/3*2100000</gadget>
<output>1_400_000</output>
1400000 people living in New York.
The combined population of both states is 1400000+2100000 = 
<gadget id="calculator">1400000+2100000</gadget>
<output>3_500_000</output>
3500000.

<result>3_500_000</result>