Percentage to Fraction
Maths Calculation Tricks
Percent Fraction
1% 1/100
2% 1/50
3% 3/100
4% 1/25
5% 1/20
6% 3/50
7% 7/100
8% 2/25
9% 9/100
10% 1/10
11.11% 1/9
12.50% 1/8
14.29% 1/7
16.67% 1/6
20% 1/5
22.22% 2/9
25% 1/4
28.57% 2/7
30% 3/10
33.33% 1/3
37.50% 3/8
40% 2/5
42.86% 3/7
44.44% 4/9
50% 1/2
55.56% 5/9
57.14% 4/7
60% 3/5
62.50% 5/8
66.67% 2/3
70% 7/10
71.43% 5/7
75% 3/4
77.78% 7/9
80% 4/5
83.33% 5/6
85.71% 6/7
87.50% 7/8
88.89% 8/9
90% 9/10
100% 1
The general formula for calculating a percentage is: (Part / Whole) * 100 = Percentage.
This formula is used to determine what portion a specific value represents out of a total value, expressed as a proportion of 100
Example: The cost of a jacket is increased from Rs.100 to Rs.150. Then by what percentage the price is increased?
Solution: Percentage increase = (150 - 100) / 100 × 100 = 50%
Example: The amount of rainfall has decreased from 125 mm to 100 mm. Then what is the corresponding percentage decrease?
Solution: Percentage decrease = (125 - 100) / 125 × 100 = 16.67%
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