The mixed number for 21 over 8 is 25/8
(21/8) - (3/4) = (21/8) - (6/8) = 15/8 = 1-7/8 = 1.875
8/21 = eight over twenty one
8/21 is in its lowest form
21 over 1 = 21
The mixed number for 21 over 8 is 25/8
(21/8) - (3/4) = (21/8) - (6/8) = 15/8 = 1-7/8 = 1.875
8/21 = eight over twenty one
x/5 = 8/21 x = 8/21 * 5 x = 1.904761905
8/21 can't be simplified.
8/21 is in its lowest form
3/8 ÷ 12/21 = 63/96
21 over 1 = 21
First set up a proprotion 21 over 8 = x over 100. then cross multiply to get ... 2100 = 8x , then divide both sides by 8 to get 262.5 = x
21/8 = 2 and 5/8 or 2.625.
-7/-8 x -20/-21 = 5/6
4/21