36 Oblicz za zbioru zadań z 1 klasy gimnazjum.
a) 4/7 + 2/7 = ?
b) 7/11 + 4/11 = ?
c) 9/12 + 5/12 + ?
d) 13/16 - 9/16 = ?
e) 13 7/15 + 2 2/15 = ?
f) 2 3/4 + 5 3/4 = ?
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a)4/7+2/7=6/7
b)7/11+4/11=11/11=1
c)9/12+5/12=14/12=1 1/6
d)13/16-9/16=4/16=1/4
e)13 7/15+2 2/15=15 9/15
f)2 3/4+5 3/4=7 6/4=8 1/2