Evaluate 3/10+2/5

310+25

To write 25 as a fraction with a common denominator, multiply by 22.

310+25⋅22

Write each expression with a common denominator of 10, by multiplying each by an appropriate factor of 1.

Tap for more steps…

Multiply 25 and 22.

310+2⋅25⋅2

Multiply 5 by 2.

310+2⋅210

Combine the numerators over the common denominator.

3+2⋅210

Simplify the numerator.

Tap for more steps…

Multiply 2 by 2.

3+410

Add 3 and 4.

710

The result can be shown in multiple forms.

Exact Form:

710

Decimal Form:

0.7

Evaluate 3/10+2/5