Solve -25/4-15/8=

$$- 2 \frac { 5 } { 4 } - 1 \frac { 5 } { 8 } =$$

Evaluate

$$-\frac{39}{8}=-4.875$$

Solution Steps

Multiply 2 and 4 to get 8.

$$-\frac{8+5}{4}-\frac{1\times 8+5}{8}$$

Add 8 and 5 to get 13.

$$-\frac{13}{4}-\frac{1\times 8+5}{8}$$

Multiply 1 and 8 to get 8.

$$-\frac{13}{4}-\frac{8+5}{8}$$

Add 8 and 5 to get 13.

$$-\frac{13}{4}-\frac{13}{8}$$

Least common multiple of 4 and 8 is 8. Convert -\frac{13}{4} and \frac{13}{8} to fractions with denominator 8.

$$-\frac{26}{8}-\frac{13}{8}$$

Since -\frac{26}{8} and \frac{13}{8} have the same denominator, subtract them by subtracting their numerators.

$$\frac{-26-13}{8}$$

Subtract 13 from -26 to get -39.

$$-\frac{39}{8}$$

Factor

$$-\frac{39}{8} = -4\frac{7}{8} = -4.875$$