Answer:
1) 2/4 = 1/2, 4/8, 6/12
2-2/4-2 = ½
2x2/4x2 = 4/8
2x3/4x3 = 6/12
2) 5/10 = 1/2, 20/40, 30/60
5÷5/10-5 = 12
5x4 / 10x4 = 20/40
5x610x6 = 3`
3) 4/5 = 8/10, 16/20, 28/35
4x2/5x2 = 8/10
4x4 / 5x4 = 16/20
4x7/5x7= 28/35
4) 3/9 = 1/3, 9/27, 21/63
3-3 / 9-3 = 1/3
3x3 / 9x3 ='
3x79x7 = 21/63
