Calculează .
1-3/5=?
2-1/3=?
15/10-1=?
30/10-2=?
50/5-5=? va rog nam nici macar o idee cum se face dau coroana promit
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Explicație pas cu pas:
1=5/5=>5/5-3/5=2/5
2=6/3=>6/3-1/3=5/3
15/10-1=>1=10/10=>15/10-10/10=5/10
30/10-2=30/10=3=>3-2=1
50/5-5=>5=5/5=>50/5-5/5=45/5