Решите 5/13+4/10 4/5*2/12

Question

Решите
5/13+4/10
4/5*2/12

Answer 1

5/13 + 4/10 = 50/130 + 52/130 = 102/130
4/5 * 2/12 = 1/5 * 2/3 = 2/15 

Answer 2

5/13+4/10=50+52/130=102/130=51/65

4/5*2/12= 4*2/5*12=8/60=2/15