6 3/5 * 0,31 + 3 2/5 * 0, 31=???

Question

6 3/5 * 0,31 + 3 2/5 * 0, 31=???

Answer 1

1) 6 3/5*0.31=33/5*0,31=6,6*0,31=2,046
2) 3 2/5*0,31=17/5*0,31=3,4*0,31=1,054
3) 2,046+1,054=3,1

Answer 2

6 3/5*0,31+3 2/5*0,31=0,31*(6 3/5+3 2/5)=0,31 * 10=3,1