Solve 123/7+28/7+9/7+21/7=

$$12 \frac { 3 } { 7 } + 2 \frac { 8 } { 7 } + \frac { 9 } { 7 } + 2 \frac { 1 } { 7 } =$$

Evaluate

$$19$$

Solution Steps

Multiply 12 and 7 to get 84.

$$\frac{84+3}{7}+\frac{2\times 7+8}{7}+\frac{9}{7}+\frac{2\times 7+1}{7}$$

Add 84 and 3 to get 87.

$$\frac{87}{7}+\frac{2\times 7+8}{7}+\frac{9}{7}+\frac{2\times 7+1}{7}$$

Multiply 2 and 7 to get 14.

$$\frac{87}{7}+\frac{14+8}{7}+\frac{9}{7}+\frac{2\times 7+1}{7}$$

Add 14 and 8 to get 22.

$$\frac{87}{7}+\frac{22}{7}+\frac{9}{7}+\frac{2\times 7+1}{7}$$

Since \frac{87}{7} and \frac{22}{7} have the same denominator, add them by adding their numerators.

$$\frac{87+22}{7}+\frac{9}{7}+\frac{2\times 7+1}{7}$$

Add 87 and 22 to get 109.

$$\frac{109}{7}+\frac{9}{7}+\frac{2\times 7+1}{7}$$

Since \frac{109}{7} and \frac{9}{7} have the same denominator, add them by adding their numerators.

$$\frac{109+9}{7}+\frac{2\times 7+1}{7}$$

Add 109 and 9 to get 118.

$$\frac{118}{7}+\frac{2\times 7+1}{7}$$

Multiply 2 and 7 to get 14.

$$\frac{118}{7}+\frac{14+1}{7}$$

Add 14 and 1 to get 15.

$$\frac{118}{7}+\frac{15}{7}$$

Since \frac{118}{7} and \frac{15}{7} have the same denominator, add them by adding their numerators.

$$\frac{118+15}{7}$$

Add 118 and 15 to get 133.

$$\frac{133}{7}$$

Divide 133 by 7 to get 19.

$$19$$

Factor

$$19$$