2 and 1 over 3
it is 1/3 because 12=4 times 3 and 4=4 times 1. 1/3
3/4 * 1/20 = (3*1)/(4*20) = 3/80
1/8*3/4 (1*3)/(8*4) 3/32
3/4*1/8=3/32
3/5 * 1/4 = 3/20
3/5 * 1/4 = 3/20
21/3 * 1/4 = 7/3 * 1/4 = 7/12
2 1/4
3/4
1 1/2 x 3/4 is 1 1/8
4 times 3 over 5 = 12/5= 4 * 3/5= 4/1 * 3/5= 12/5