Question

Aflati valoarea absoluta a numarului a= -18/15:{(7/5-2,5) • 10+3]-7/30.
Va rog sa ma ajutati!

Answer 1

a= -18/15:[(7/5-2,5) • 10+3]-7/30=
= -6/5:[(7/5-5/2) • 10+3]-7/30=
= -6/5:(70/5-50/2+3)-7/30=
= -6/5:(14-25+3)-7/30=
= -6/5:(-8)-7/30=
= 6/5 × 1/8-7/30=
= 3/20-7/30=
= (9-14)/60=
=-5/60=
=-1/12
IaI=I-1/12I=1/12