kristinagikavchuk Я сделала 1-3
1)
2)
3)

vozleevaea А) 1/4-(1-11/12) = 1/4-(12/12-11/12) = 1/4-1/12 = 3/12-1/12=2/12=1/6
б)2-(13/33-5/22) = 2-(26/66-15/66) = 2-11/66 = 2-1/6 = 11/6 = 1 5/6
в) 6 3/16-(2 3/8+3 5/12) = 99/16-(19/8+41/12) = 99/16-(57/24+82/24) = 99/16-139/24 = 297/48-278/48 = 19/48
г) 8 1/2-3 4/15- 1 7/30 = 17/2-49/15-37/30 = 255/30-98/30-37/30 = 120/30 = 4
д) (13-8 5/12)+(17 1/2- 16 1/5) = (13- 101/12)+(35/2-81/5) = 55/12+13/10 = 353/60 = 5 53/60
е) (63 2/3+3 1/8)-(13-10 5/9) = (63 16/24+3 3/24)-(13-10 5/9) = 66 19/24 - 13 + 10 5/9 = 66 19/24 - 22/9 = 1603/24 - 22/9 = 4633/72 = 64 25/72