將0.32轉換為分數:
0.32 = 32/100
查找分子和分母的最大公約數(gcd):
gcd(32,100)= 4
通過用gcd除分子和分母來減少分數:
0.32 =(32/4)/(100/4)= 8/25
將2.56轉換為分數:
2.56 = 2 + 56/100
查找分子和分母的最大公約數(gcd):
gcd(56,100)= 4
通過用gcd除分子和分母來減少分數:
2 + 56/100 = 2 +(56/4)/(100/4)= 2 + 14/25
將0.124轉換為分數:
0.124 = 124/1000
查找分子和分母的最大公約數(gcd):
gcd(124,1000)= 4
通過用gcd除分子和分母來減少分數:
0.124 =(124/4)/(1000/4)= 31/250
將0.333333 ...轉換為分數:
x = 0.333333 ...
10 x = 3.333333 ...
10 x - x = 9 x = 3
x = 3/9 = 1/3
將0.0565656 ...轉換為分數:
x = 0.0565656 ...
100 x = 5.6565656 ...
100 x - x = 99 x = 5.6
990 x = 56
x = 56/990 = 28/495
小數 | 分數 |
---|---|
0.00001 | 1/100000 |
0.0001 | 1/10000 |
0.001 | 1/1000 |
0.01 | 1/100 |
0.08333333 | 1/12 |
0.09090909 | 1/11 |
0.1 | 1/10 |
0.11111111 | 1/9 |
0.125 | 1/8 |
0.14285714 | 1/7 |
0.16666667 | 1/6 |
0.2 | 1/5 |
0.22222222 | 2/9 |
0.25 | 1/4 |
0.28571429 | 2/7 |
0.3 | 3/10 |
0.33333333 | 1/3 |
0.375 | 3/8 |
0.4 | 2/5 |
0.42857143 | 3/7 |
0.44444444 | 4/9 |
0.5 | 1/2 |
0.55555555 | 5/9 |
0.57142858 | 4/7 |
0.6 | 3/5 |
0.625 | 5/8 |
0.66666667 | 2/3 |
0.7 | 7/10 |
0.71428571 | 5/7 |
0.75 | 3/4 |
0.77777778 | 7/9 |
0.8 | 4/5 |
0.83333333 | 5/6 |
0.85714286 | 6/7 |
0.875 | 7/8 |
0.88888889 | 8/9 |
0.9 | 9/10 |
1.1 | 11/10 |
1.2 | 6/5 |
1.25 | 5/4 |
1.3 | 13/10 |
1.4 | 7/5 |
1.5 | 3/2 |
1.6 | 8/5 |
1.7 | 17/10 |
1.75 | 7/4 |
1.8 | 9/5 |
1.9 | 19/10 |
2.5 | 5/2 |
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