(1/2-2/3)-(1/3+1/4) ; (2/3-1/5)+(1/3-2/5) ; (1/2-1/5)-(1/3-3/4) ; 3 целых 1/2-5 целых 1/3 ; -7 целых 1/3-1 целую 1/2 ; 3 целых 2/5- 5 целых 1/2 ПОМОГИТЕ ПЛИЗ УМОляю
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(2/3-1/5)+(1/3-2/5)=7/15-1/15=6/15=2/5
(1/2-1/5)-(1/3-3/4)=3/10+5/12=43/60
3 1/5 - 5 1/3=(3-5)+1/5-1/3= -2 2/15
-7 1/3-1 1/3=-7-1+(-1/3-1/3)=-8 2/3
3 2/5 - 5 1/2=-2 1/10