Dla Klas 5 szybko zrobić ułamki !!!!
2/5+7/9- 5/6 =
1i1/2 - 3/4 + 5/8=
(1i1/5-1/2)+(3/4+3/10)=
3/4x5/6:1/2=
7/9:2/3x4i3/8=
10-1i5/6x4i1/2=
5/7x4i2/3+5/6:1i1/9=
(2i1/4-1i2/3):(1/6+2/9=
plis zrób to !!!
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1 1/2-3/4+5/8=1 6/8-5/8+5/8=1 1/8+5/8=1 6/8
(1i1/5-1/2)+(3/4+3/10)=(1 4/20-11/20)+(8/20+5/20)=17/20+13/20=20/20=1