120/169×13/60+200/243÷100/81-1/13×10 - вопрос №970729112016913602002431008111310 от Анастасия20010104 16.03.2021 09:50

Question

Математика: 120/169×13/60+200/243÷100/81-1/13×10

Анастасия20010104 · Answer

120/162*13/60+200/243÷100/81-1/13*10/1=120/162*13/60=120/81*13/30=1560/2430
200/243÷100/81=200/243*81/100=2/3*1/1=2/3
1560/2430+2/3=780/810+1/1=780/810+810/810=1590/810
1/13*10/1=10/13-2/3=30/39-26/39=4/39