Solve 8 . 8/21 + 5/21 + 2/21 = | 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

$$\frac { 8 } { 21 } + \frac { 5 } { 21 } + \frac { 2 } { 21 } =$$

Evaluate

$\frac{5}{7}\approx 0.714285714$

Solution Steps

Since $\frac{8}{21}$ and $\frac{5}{21}$ have the same denominator, add them by adding their numerators.

$$\frac{8+5}{21}+\frac{2}{21}$$

Add $8$ and $5$ to get $13$.

$$\frac{13}{21}+\frac{2}{21}$$

Since $\frac{13}{21}$ and $\frac{2}{21}$ have the same denominator, add them by adding their numerators.

$$\frac{13+2}{21}$$

Add $13$ and $2$ to get $15$.

$$\frac{15}{21}$$

Reduce the fraction $\frac{15}{21}$ to lowest terms by extracting and canceling out $3$.

$$\frac{5}{7}$$

Factor

$\frac{5}{7} = 0.7142857142857143$