А)(1:20)+(1:30) Б)(1:9)+(1:9)+(1:9)

Question

А)(1:20)+(1:30)
Б)(1:9)+(1:9)+(1:9)

Answer 1

А) 1/20+1/30=1/12
б) 1/9+1/9+1/9=1/3

Answer 2

1\20+1\30=3\60+2/60=5\60=1\12
1\9+1\9+1\9=3*1\9=1\3

Comments

десятичной дробью плиз

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1) =0.083(3) 2)0.3(3)