Question

53 дробь54 - (1 дробь 6+ 7 дробь9) как решить

Answer 1

(53/54)-((1/6)+(7/9))=1/27

1) (1/6)+(7/9)=((1×3)+(7×2))/18=(3+14)/18=17/18;

2) (53/54)-(17/18)=(53-(17×3))/54=(53-51)/54=2/54=1/27.