Solve (3)/(7)-(-(2)/(5)) | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$\frac{ 3 }{ 7 } -(- \frac{ 2 }{ 5 } )$$

Evaluate

$\frac{29}{35}\approx 0.828571429$

Solution Steps

The opposite of $-\frac{2}{5}$ is $\frac{2}{5}$.

$$\frac{3}{7}+\frac{2}{5}$$

Least common multiple of $7$ and $5$ is $35$. Convert $\frac{3}{7}$ and $\frac{2}{5}$ to fractions with denominator $35$.

$$\frac{15}{35}+\frac{14}{35}$$

Since $\frac{15}{35}$ and $\frac{14}{35}$ have the same denominator, add them by adding their numerators.

$$\frac{15+14}{35}$$

Add $15$ and $14$ to get $29$.

$$\frac{29}{35}$$

Factor

$\frac{29}{5 \cdot 7} = 0.8285714285714286$