Mingming bought a Zhang Aixin sticker, and after using one, the remaining love patterns on the paper accounted for three-fifths of the original total, and Mingming used two-fifths of the love patterns.

Calculate the formula according to the meaning of the question:

1-3/5

=5/5-3/5

=2/5

So obviously, it used a 2/5 love mode.

Fractional addition and subtraction:

Different denominator scores are added and subtracted, and then divided first, that is, using the basic properties of scores, different denominator scores are converted into the same denominator score, the unit of scores is changed without changing the size, and then the offer score can be reduced according to the addition and subtraction of the same denominator score.

Addition and subtraction of fractions with the same denominator, with the denominator unchanged, that is, the unit of fractions remains unchanged, and numerator addition and subtraction can reduce the bidding points.