3 intregi si 1/4=(3×4+1)/4=13/4
2 intregi si 1/6= (2×6+1)/6=13/4
34/4+34/4=68/4
68/4:5/6=68/4×6/5=340/24 simplificat cu 4= 85/6
2intregi si 5/8=(2×8+5)/8= 21/8
1 intreg si 3/4=(1×4+3)/4=7/4
21/8-7/4(amplifici cu 2 a doua fractie)= 21/8-14/8=7/8
7/8×13/7=49/104
