i forgot how to find equivalent fractions. i know that the bottom would be times by 3 to get 18 but if you times 3 by 3 it would make nine , and neither nine or 3 are in the same times table as 20 . so im confused.
set up a proportion. take 3/6 = 20/x Cross multiply 3 * x = 6 * 20 Simplify 3x = 120 Divide by 3 x = 40 So the denominator of the bottom fraction is 40
[tex] \frac{3}{6} = \frac{9}{18} = \frac{20}{40} [/tex] if you look closely, 3/6 is equivalent to 1/2, so from that we can infer that the question is asking for 1/2 equivalents; for example, 9 is half of 18 and 20 is half of 40.
