|
1： 1/2=2/4=3/6 18/6=3/9=1/3
2: 21/27=7/9=14/18 3÷4=12/16=9/12 1/6=4/242/12 18/12=9÷6=6÷4
3： 4/10=2/5 17/13是最簡分數(shù) 18/48=3/8 52/39=4/3
4： 6/5 5/4 3/5 3/8
5： 4 4×10 40 -------- = ---------------- = ----------- 3 3×10 30
9 9×3 27 --------- = ---------------- = ------------ 10 10×3 30
5 5×3 15 ----------- = --------------- = ------------- 6 6×3 18
2 2×2 4 --------- = ---------------- = ------------- 9 9×2 18 | 