45+210

Factor 2 out of 2.

45+2(1)10

Cancel the common factors.

Factor 2 out of 10.

45+2⋅12⋅5

Cancel the common factor.

45+2⋅12⋅5

Rewrite the expression.

45+15

45+15

45+15

Combine the numerators over the common denominator.

4+15

Add 4 and 1.

55

Divide 5 by 5.

1

1

Add 4/5+2/10