To change
- Decimal to Percentage
- Multiply by 100 ~ eg. 0.45 == 0.45 x 100% = 45%
- Percentage to Decimal
- Divide by 100 ~ eg. 76% = 76 ÷ 100 = 0.76
- Fraction to Decimal
- Divide numerator by denominator ~ eg. 4/5 = 4 ÷ 5 = 0.8
- Decimal to Fraction
- Put over 10, 100, 1000,... and simplify ~ eg. 0.54 = 54/100 = 27/50
- Percentage to Fraction
- Divide by (put over) 100 and simplify ~ eg. 35% = 35/100 = 7/20
- Fraction to Percentage
- Multiply by 100 and simplify ~ eg. 3/5 = 3/5 x 100% = 300/5% = 60%
