There are three fourths of tons of coal in the canteen, two fifths of which are used. How many tons are left?

There are three fourths of tons of coal in the canteen, two fifths of which are used. How many tons are left?


0.75-0.4=0.35t



There are three fourths of tons of coal in the canteen. If you use part of it, there are still two fifths left and () tons left?


3/4×2/5=0.3
(0.3) tons left