oblicz ulamki 2i1/3+4i1/3=    5i2/7+1i3/7=  3i2/10+1i7/10=   2i3/7+1i6/7=  8i9/10+2i7/10   1i3/5+2i4/5=   3i1/4+1i3/4=  4i13/20+12i8/20    15i3/100+3i80/100=  i oblicz sprytnie  1/4+2/3+3/4+1/3=   2/5+1/2+6/5+1/2=   3/7+1/3+1/3+4/7=  

2i1/3+4i1/3=6i2/3     5i2/7+1i3/7= 6i5/7 3i2/10+1i7/10=  4i9/10 2i3/7+1i6/7= 4i2/7 8i9/10+2i7/10  =11i6/10 1i3/5+2i4/5=  4i2/5 3i1/4+1i3/4= 5 4i13/20+12i8/20 =17i1/20   15i3/100+3i80/100=18i83/100   i oblicz sprytnie  1/4+2/3+3/4+1/3=  1+1=2 2/5+1/2+6/5+1/2=  1+7/5=2i2/5 3/7+1/3+1/3+4/7=  1+2/3=1i2/3

 Oblicz ułamki: a) 2i 1/3 + 4i 1/3 = 6i 2/3  b) 5i 2/7+ 1i 3/7 = 6i 5/7 c) 3i 2/10 + 1i 7/10 = 4i 8/10 d) 2i 3/7 + 1i 6/7 = 3i 9/7 = 4i 2/7 e) 8i 9/10 + 2i 7/10 = 10i 17/10 = 11i 7/10 f) 1i 3/5 + 2i 4/5 = 3i 7/5 = 4i 2/5 g) 3i 1/4 + 1i 3/4 =  4i 4/4 = 5  h) 4i 13/20 +12i 8/20 = 16i 21/20 = 17i 1/20 i) 15i 3/100 + 3i 80/100 = 18i 83/100 Oblicz sprytnie : a) 1/4 + 2/3 + 3/4 + 1/3 = 3/12 + 8/12 + 9/12 + 4/12 = 24/12 = 2 b) 2/5 +1/2 + 6/5 +1/2 = 4/10 + 5/10 + 12/10 + 5/10 = 26/10 = 2i 6/10 c) 3/7 +1/3 + 1/3 + 4/7 = 9/21 + 7/21 + 7/21 +12/21 = 65/21 = 3i 2/21