Question

请问（1/3-1/5+4/15）x45怎么算

Answer 1

（1/3-1/5+4/15）x45怎么算
解：采用分配律，
原式=（1/3-1/5+4/15）x45
=1/3x45-1/5x45+4/15x45
=15-9+4x3
=6+12
=18

Answer 2

(1/3-1/5+4/15)×45
=1/3 ×45-1/5× 45+4/15×45
=15-9+12
=6+12
=18