All numbers can be changed from fractions to decimals.
Whole numbers are positive numbers and there are no fractions or decimals.
Decimals separate whole numbers from fractions.
No because whole numbers are integers without decimals or fractions
fractions or decimals
All rational numbers can be converted from decimals to fractions as for example 0.75 = 3/4 but irrational numbers can not be converted from decimals to fractions.
Fractions can be converted to decimals, percentages or mixed numbers.
No because whole numbers are integers that do not have decimals or fractions attached to them.
A calculator can convert numbers that appear as decimals into numbers that appear as fractions. Fractions are generally considered more easy to use then decimals.
You need decimals when you measure and fractions. You need decimals, because to measure and fractions. Also, so whole numbers could exist if there are decimals. There will be no math if there's no decimals.