А) 2 целые 1/6- (х +1 целая 1\12)=0,25 б) 8 целых 1\3- (5 целых 2\15-х)=3 целые 2\9

2 1/6 — (х-1 1/12)=1/413/6 — (х-13/12)=1/426/12 — (х-13/12)=3/1226/12-х +13/12=3/1226/12+13/12-3/12=х 36/12=хх=48 1/3 — (5 2/15 — х)=3 2/925/3 — (77/15 — х)=29/9375/45 — (231/45-х)=145/45375/45-231/45+ х=145/45 х=145/45-375/45+231/45 х=1/45