1) 3/8*4/5: 9/10 2)6/7: 3/5: 1 2/5 3)2 2/11*1 3/8: - вопрос №6914663138459102673512532211138344112332751 от mimra23213 14.04.2021 21:01

Question

Математика: 1) 3/8*4/5: 9/10 2)6/7: 3/5: 1 2/5 3)2 2/11*1 3/8: 3/4 4)11/23*3 2/7: 5 1/2 заранее ок

mimra23213 · Answer

1)3/8•4/5:9/10=24/40:9/10=4/5•10/9=40/40=1
2)6/7:3/5:1 2/5=6/7•5/3:7/5=30/21:7/5=10/7•5/7=50/49
3)2 2/11•1 3/8:3/4=24/11•11/8:3/4=264/88:3/3=264/88•4/3=1056/24=44
4)11/23•3 2/7:5 1/2=11/23•23/7:11/2=253/161:11/2=253/161•2/11=506/1771=46/161