What is -7 4/5+(-1) 1/5 ?

The solution to -7 4/5+(-1) 1/5 is -8

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-7 4/5+(-1) 1/5

- 7 \frac{4}{5} + (- 1) \frac{1}{5}

- 8

Solution steps

- 7 \frac{4}{5} + (- 1) \frac{1}{5}

Convert mixed numbers to improper fractions:

7 \frac{4}{5} = \frac{39}{5}

= - \frac{39}{5} + (- 1) \frac{1}{5}

Follow the PEMDAS order of operations

Multiply and divide (left to right)

(- 1) \frac{1}{5} : - \frac{1}{5}

= - \frac{39}{5} - \frac{1}{5}

Add and subtract (left to right)

- \frac{39}{5} - \frac{1}{5} : - 8

= - 8

\frac{1}{2} + 2 - \frac{9}{10}

- 3^{2} - (- 3)^{2}

2^{2} \times (- 9 + 4)

(1 4^{2} \times 15) - (2^{2} + 20)

3^{2} - (- 2^{2})