Упростите 11/12m-1/3m-1/4m при m=1,5

Question

Упростите 11/12m-1/3m-1/4m
при m=1,5

Answer 1

11/123/2m-1/3m-1/4m=11/12×1,5-1/3×1,5-1/4×1,5=11/12×3/2-1/3×3/2-1/4×3/2=
=11/4×1/2-1/2-3/8=11/8-1/2-3/8=1/2