Решите пожалуйста примерыЗАРАНЕЕ СПАСИБООО!!!!

Question

Решите пожалуйста примеры
ЗАРАНЕЕ СПАСИБООО!!!!

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Answer 1

1) (3/4 + 1/20)*1/2 = (15/20+1/20)*1/2 = 16/20*1/2 = 16/40 = 2/5
2) (7/12 - 1/3)*16/19 = (7/12-4/12)*16/19 = 3/12*16/19 = 1/3*16/19 = 16/57 
3) (38/5 - 34/15)*9/32 = (114/15-34/15)*9/32 = 80/15*9/32 = 16/3*9/32 = 3/2
4) (11/24 + 1/6)*8/5 = (11/24+4/24)*8/5 = 15/24*8/5 = 1
5) (11/5 + 13/5)*5/9 = 24/5*5/9 = 8/3 = 2 2/3
6) (7 - 37/16)*4/25 = (112/16 - 37/16)*4/25 = 75/16*4/25 = 3/4

Answer 2

1)(3/4+1/20)*1/2=(15/20+1/20)*1/2=16/20*1/2=8/20
2)(7/12-1/3 )*16/19=(7/12-4/12)*16/19=3/12*16/19=1/19
3)(38/5 -34/15)*9/32=(114/15-34/15)*9/32=80/15*9/32=3/2
4)(11/24+1/6)*9/5=(11/24+4/24)*9/5=15/24*9/5=3/4
5)(11/2+13/5 )*5/9=(55/10+26/10)*5/9=81/10*5/9=9/2
6)(5 5/10)*4/25=55/10*4/25=22/25