Percentages are easier for some purposes, harder for other.
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Because percentages are essentially the numerators of fractions with the same denominator, 100.
Because that it s harder to work out percentages than fractions and decimals
A value can be stated as a percent or a fraction. Improper fractions will be greater than 100 percent.
It is easier to multiply or divide fractions than to add or subtract fractions because in multiplication, you just have to multiply the numerator by the numerator and the denominator by the denominator. Same applies with division of fractions, except that you have to reciprocate the fraction you're dividing with (divisor) then proceed to multiplication. Whereas, in addition and subtraction of fractions, you still have to get their Least Common Denominator (LCD).
You might think that 1/4 is greater than 1/3 because 4 is greater than 3. If you know that 1/3 = 4/12 and 1/4 = 3/12, it makes them easier to compare.