What is 1over7 plus 3over 21?

How many months is 3 years and 10 months? Ninety years of classification of prints by millions had verified what? How many 12 inch cubes fit into a rectangular prism that measures 4 inches long 5 inches wide and 612 inches high? How many inches in 1 half of yard? How many yards is one ton of crushed granite? What number goes into 16? How much liter bitumen takes for one squre meter? Can you rotate text counterclockwise by entering a number between 1 degree and 180 degree on the aligment sheet in the format cells dialog box? What are the five multiples of 47? 2 prime numbers that make 91? What is the tetrahedron parts names? How many flies does a person swallow in one year? What is half of 622? What is the swift code for HSBC at Kowloon City Hong Kong? How do you expand numbers using place value? What is 56 multiplied by 54? What is UB04? How do you express numbers in the simplest form? What is a area of a circle with a diameter of 24 meters? What is the formula to convert 65 miles per hour to kilometers per hour?