Question

Calculati ca adunare repetata:DAU CORONITA
a)2×3/5
b)3×2/5
c)7×2/5
d)2×7/5
e)6+3/4
f)3×3/2
g)20+7/25
h)1/36×21

Answer 1

3/5+3/5=6/5
2/5+2/5=4/5
2/5+2/5=4/5
7/5+7/5=14/5

Answer 2

2×3/5=6/5. 3×2/5=6/5. 7×2/5=14/5. 2×7/5=14/5. 6+3/4=9/4. 3×3/2=9/2. 20+7/25=27/25. 1/36×21=1/36.