Răspuns:
Explicație pas cu pas:
a)5·7/3=35/3=11 2/3
5·2+5/3=10+1 2/3=11 2/3
b)7·13/4=91/4=22 3/4
7·3+7·1/4=21+7/4=22+1 3/4=22 3/4
c)25/3·5=125/3=41 2/3
8·5+5/3=40+5/3=41 2/3
d)9/2·5=45/2=22 1/2
3·5+1/2·5=15+15/2=15+7 1/2=22 1/2
e)21/4·3=63/5=12 3/4
4·3+3/5=12 +3/5=12 3/5
f)15/7·6=60/7=12 6/7
2·6+1/6·6=12+6/7=12 6/7
g)27/5·4=108/5=21 3/5
5·4+2/5·4=20+8/5=21 3/5
h)15/4·3=45/4=11 1/4
3·3+3/4·3=9+9/4=11 1/4
