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b) 3¾*1⅕+(-1½):2⅖-¼=4 1/2+(-5/8)-1/4=3 7/8- 1/4=3 5/8
c)(3 8/15+1 3/5):(4 1/7 -10 3/28)=5 2/15:(-6 1/28)=2156/2535
b). niestety nie widzę. :)
b) 3¾*1⅕+(-1½):2⅖-¼=4,5+(-5/8)-¼=3i5/8
c)(3 8/15+1 3/5):(4 1/7 -10 3/28)=(3 8/15 +1 9/15):(4 4/28-10 3/28)=
4 17/15: (-6 1/28)=2156/2535