math
posted by Kelly on .
Write the ratio as a fraction in lowest terms. compare in inches. 3ft to 31 inches. The ratio is__.

the first thing to remember is that the units must be the same before you can compare things.
So, since 3 ft = 36 inches.
36in:31in = 36:31 or 36/31
Since 36 and 31 have no common factors, that's the lowest terms.