1) 18/27 = 2/3
2) 3/8 = 3/8 *4/4 = 12/32
3) 3/84) 7 i 3/4 - 5 i 1/3 = 31/4 - 16/3 = 93/12 - 64/12 = 29/12 = 2 i 5/12
5) 2x/3 = 10/21
14x/21 = 10/2114x = 10
x = 10/14
6) 2 i 4/5 * 1 i 1/7 = 14/5 * 8/7 = 112/35 = 3 i 7/35 = 3 i 1/5
