Question

(7/12-1/3)•16/19=
(11/24+1/6)•1.3/5=
(7.3/5-2.4/15)•9/32=

Answer 1

(7/12-1/3)•16/19=4/19
1) 7/12-1/3= (7-4)/12=3/12=1/4
2) 1/4*16/19=4/19

(11/24+1/6)•1.3/5=1
1) 11/24+1/6=(11+4)/24=15/24
2) 15/24*1 3/5= 15/24*8/5=1

(7.3/5-2.4/15)•9/32=1 1/2
1) 7  3/5-2 4/15=38/5-34/15=(114-34)/15= 80/15=16/3
2) 16/3*9/32=3/2= 1  1/2