Question

$6 \frac{3}{19} - 5 \frac{9}{38};$ $11 \frac{5}{6} - 10 \frac{17}{18} .$

Answer 1

La prima ecuatie amplifica prima fractie cu 2
la a doua ecuatie amplifici prima fractie cu 3
spor la calcule

Answer 2

6 intreg 3/19= (6x19+3)/19=117/19
5 intreg 9/38=(5x38+9)/38=199/38

117/19-199/38=(117x2-199)/38=35/38

11 intreg 5/6=(11x6+5)/6=71/6
10 intreg 17/18=(10x18+17)/18=197/18
71/6-197/18=(71x3-197)/18=16/18=8/9