1) 1 2/5+5 4/5; 2)2 1/22×2 1/5; 3)16 1/4÷4 1/3; - вопрос №1125545221222153161441342231235129917206834 от EgorT222 22.07.2020 18:58

Question

Математика: 1) 1 2/5+5 4/5; 2)2 1/22×2 1/5; 3)16 1/4÷4 1/3; 4)2 2/3÷1 2/3; 5)1 29/91×3 1/4;

EgorT222 · Answer

1) 1 2/5+ 5 4/5 =6 6/5 =7 1/22) 2 1/22*2 1/5 = 45/22*11/5 = (45*11)/(22*5)=(7*1)/(2*1)=7/2= 3 1/23)16 1/4:4 1/3= 65/4 : 13/3 = (65*3)/(4*13) =195/52 = 3 39/524)2 2/3 : 1 2/3 = 8/3:5/3=(8*3)/(3*5)=8/5=1 3/55)1 29/91 *3 1/14= 120/91*43/14=(120*43)/(91*14)= 5160/1274=4 64/1274= 4 32/637...