Question

1,5-1 1/2*(1 2/5+1/5)

Answer 1

1,5-1ц1/2*(1ц2/5+1/5)= 1ц5/10-3/2*(7/5+1/5)=15/10-3/2*8/5=15/10-(3*4)/(1*5)=15/10-12/5=15/10-(12*2)/(5*2)=15/10-24/10=-9/10;