7/8 = 14:16 As 7×2=14 and 8×2=162/5 = 4:10 As 2×2=4 and 5×2=105/12 = 15:36 As 5×3=15 and 12×3=3636/48 = 3:4As 36÷3=12 and 48÷4=12