Comparative quantity refers to a specific quantity compared with the standard quantity. Fraction refers to the fraction of one number to another. The fraction represents the comparison between two quantities, and the quantity used as the comparison standard is the unit "1" (the quantity represented by the unit "1" is also called the standard quantity, and the quantity compared with the standard quantity is called the comparison quantity).

The difference between fraction and quantity: fraction is generally expressed as a fraction or percentage, and quantity represents a specific number. The quantity is followed by units, and the fraction is followed by no units. Fraction refers to the fraction of one number to another, which corresponds to the comparative quantity in the fractional application problem, and the corresponding quantity is the mathematical term of the fractional multiplication application problem. Fraction and fraction are subordinate in scope, and the corresponding quantity is a part of fraction.

2. The score represents the comparison between two quantities. The quantity used as the comparison standard is the unit "1", and the quantity expressed by the unit "1" is also called the standard quantity, and the quantity compared with the standard quantity is called the comparison quantity.

3. "A number is a fraction of B number". This "score" is the score; The second number for comparison as a standard is the standard quantity, which is expressed in the unit "1". The number compared with the standard quantity is the comparison quantity.

The concept of this quantity is relatively simple. Pupils only need a good understanding.