А)7/15+(2/15+1/5) д)3/16+(1/16+ 5/8) е) (1+13+1/14)+ - вопрос №715215153161165811311412135229584 от 8алина82 07.12.2021 23:40

Question

Математика: А)7/15+(2/15+1/5) д)3/16+(1/16+ 5/8) е) (1+13+1/14)+ 12/13

8алина82 · Answer

а) 7/15+(2/15+1/5)=7/15+(2/15+3/15)=7/15+5/15=12/15д) 3/16+(1/16+5/8)=3/16+(1/16+10/16)=3/16+11/16=14/16=7/8е) (1+13+1/14)+12/13=14 1/14+12/13 = 15/14+12/13=195/182+168/182=363/182=1 181/182...