Каким натуральными числам равны дроби 4/4 10/5 18/3 7/1 3/1 24/6 10/10 20/4

4/4=1; n=1; 10/5=2; n=2; 18/3=6; n=6; 7/1=7; n=7; 3/1=3; n=3; 24/6=4; n=4; 10/10=1; n=1; 20/4=5; n=5

4/4=1   10/5=2   18/3=6   7/1=7   3/1=3   24/6=4   10/10=1 20/4=5

5/6 - (7/15 - 17/20) : 1 1/45 = 1 целая 5/24 1) 7/15 - 17/20 = 28/60 - 51/60 = - 23/60 2) - 23/60 : 1 1/45 = - 23/60 : 46/45 = - 23/60 * 45/46 = - (1*3)/(4*2) = = - 3/8 3) 5/6 - (- 3/8) = 20/24 + 9/24 = 29/24 = 1 целая 5/24  пояснения: 7/15 = 28/60 - доп.множ. 4 17/20 = 51/60 - доп.множ. 3 5/6 = 20/24 - доп.множ. 4 3/8 = 9/24 - доп.множ. 3  - 5/9 - 1 43/72 : (7/24 + 3/16) = - 3 целых  8/9 1) 7/24 + 3/16 = 14/48 + 9/48 = 23/48 2) 1 43/72 : 23/48 = 115/72 * 48/23 = (115*2)/(3*23) = 230/69 = 3 целых 23/69 = 3 целых 1/3 3) - 5/9 - 3 1/3 = - 5/9 - 3 3/9  = - 3 целых 8/9 пояснения: 7/24 = 14/48 - доп.множ. 2 3/16 = 9/48 - доп.множ. 3 1 целая 43/72 = (1*72+43)/72 = 115/72 1/3 = 3/9 - доп.множ. 3  

630140 / 70 * 70 + 60 * 754 - 11223 / 87 = 675251 1) 630140 / 70 = 9002 2) 9002 * 70 = 630140 3) 60 * 754 = 45240 4) 11223 / 87 = 129 5) 630140 + 45240 = 65380 6) 675380 - 129 = 675251 98754 - 3268 * ( 6075 + 9980 - 15996 ) / 38 = 93680  1) 6075 + 9980 = 16055 2) 16055 - 15996 = 59 3) 3268 * 56 = 192812 4) 192812 / 38 = 5074 5) 98754 - 5074 = 93680 ( 20000 - 5163 ) /  37 - 16006 / ( 4558 / 86 ) = 99 1) 20000 - 5163 = 14837 2) 4558 / 89 = 53 3) 14837 / 37 = 401 4) 16006 / 53 = 302 5) 401 - 302 = 99 ( 18305 / 7 - 2880 / 18 ) * 74 - 157930 = 23740 1) 18305 / 7 = 2615 2) 2880 / 18 = 160 3) 2615 - 160 = 2455 4) 2455 * 74 = 181670 5) 181670 - 157930 = 23740