Question

1)2/5+1,83 2)9,8×3/10

Answer 1

40/100+183/100=223/100=2.23
49/5*3/10=9.8*0.3=2.94

Answer 2

1)2/5+1,83=0,4+1,83=2,23;
2)9,8*3/10=9,8*0,3=2,94.