495/630 = 11/14 in its lowest terms
630/30 = 21/1 = 21
7/12
11/18
171/630 = (19×9)/(70×9) = 19/70
180/630 can be multiplied by 0.01111.../0.01111... to simplify it to 2/7. Multiplying by 1, does not change the value of the number, and any number divided by itself equals 1.
You cannot because 630 is an integer. It is neither a fraction nor a mixed number.
Wisconsin Lutheran College's 2014 25th-75th percentile SAT Math Scores are 495-630, meaning 25% of students scored 495 or lower on the Math portion of the SAT, and 75% of students scored 630 or lower (i.e. 25% of students scored 630 or higher).
630/810 = 7/9
90, 180, 270, 360, 450, 540, 630, 720, 810, 900 +90 . . .
63/66 = 630/660 is an equivalent fraction. In standard form, 21/22.
Multiples of 45 in that range include 405, 450, 495, 540, 585, 630, 675, 720, 765, 810, 855 and 900
6.3 x 100 = 630%