Решите примеры 5/12+5/6-3/4; 4/9-3/10+1/2; 5/8+1/10-7/25 - вопрос №48831795125634493101258110725 от mariyamariya201 14.04.2020 20:26

Question

Математика: Решите примеры 5/12+5/6-3/4; 4/9-3/10+1/2; 5/8+1/10-7/25

mariyamariya201 · Answer

5/12+5/6-3/4=5/12+10/12-9/12=(5+10-9)/12=6/12=1/2. 4/9-3/10+1/2=40/90-27/90+45/90=(40-27+45)/90=58/90=29/45. 5/8+1/10-7/25=125/200+20/200-56/200=(125+20-56)/200=89/200....