1)3 4/5+3+(-11/10)1. 3 4/5+3=6 4/52.6 4/5+(-11/10)=6 8/10-11/10=68/10-11/10=57/10=5 7/10=5,7Ответ:5,72)3 3/4+1/5*1,251. 1/5*1,25=1/5*1 1/4=1/5*5/4=5/20=1/42. 3 3/4+1/4=3 4/4=4Ответ: 43)1:1+1/41. 1:1=12. 1+1/4=1 1/4=1,25Ответ:1,254)6,5:1,3*221. 6,5:1,3=52. 5*22=110Ответ:1105)(1,2+2,3)*5,61. 1,2+2,3=3,52.3,5*5,6=3 5/10*5 6/10=35/10*56/10=7/5*28/2=196/10=19 6/10=19,6Ответ:19,66)1,5*4,5-11. 1,5*4,5=1 5/10*4 5/10=15/10*45/10=3/2*9/2=27/4=6 3/4=6,752. 6,75-1=5,75Ответ:5,75