Question

вычислитель (1-7/15+0,4):(8,3+4,15-15/38)

Answer 1

(1-7/15 +0,4) / (8,3 +4,15 - 15/38)   =  (1-7/15 +2/5) / (83/10 +415/100 -15/38)  =
(15/15 -7/15 +6/15) / (83/10 +83/20 -15/38) = (14/15) / (3154/380+1577/380 -150/380) =
(14/15) / (4581/380) = 1064/13743