selmash21 Решение в фотках:
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99tasha

Verified answer

И)
3 1/3-1 1/4=10/3-5/4=
=40/12-15/12=25/12
4/5×25/12=5/3
1 5/6+5/3=11/6+5/3=11/6+10/6=
=21/6=7/2=3 1/2


к)
2 1/6÷1 1/12=13/6÷13/12=
=13/6×12/13=2
1 1/8-1/12=9/8-1/12=
=27/24-2/24=25/24
48×25/24=50
2+50=52