Question

помогите 1 и 3 пожалуйста.

Answer 1

N 1 
6/16 = 3/4 
9/45 = 1/5 
32/88 = 4/11
( 36*14 ) / (7*12 ) = 3 * 2 = 6 
N 3 
3/8 + 7/16 = 6/16 + 7/16 = 13/16
7/15 - 3/20 = 28/60 - 9/60 = 19/60
23/40 - 9/20 + 1/16 = 46/80 - 36/80 + 5/80 = 15/80 = 3/16

Answer 2

1) 6/16=3/8
    9/45=1/5
    32/88=4/11
    (36*14)=(7*12)=3*2=6
3) 3/8+7/16=6/16+7/16=(6+7)/16=13/16
    7/15-3/20=28/60-9/60=(28-9)/60=19/60
    23/40-9/20+1/16=46/80-36/80+5/80=(46-36+5)/80=15/80=3/16