Solve 7.7-71/5=

$$7.7 - 7 \frac { 1 } { 5 } =$$

Evaluate

$$0.5$$

Solution Steps

Multiply 7 and 5 to get 35.

$$7.7-\frac{35+1}{5}$$

Add 35 and 1 to get 36.

$$7.7-\frac{36}{5}$$

Convert decimal number 7.7 to fraction \frac{77}{10}.

$$\frac{77}{10}-\frac{36}{5}$$

Least common multiple of 10 and 5 is 10. Convert \frac{77}{10} and \frac{36}{5} to fractions with denominator 10.

$$\frac{77}{10}-\frac{72}{10}$$

Since \frac{77}{10} and \frac{72}{10} have the same denominator, subtract them by subtracting their numerators.

$$\frac{77-72}{10}$$

Subtract 72 from 77 to get 5.

$$\frac{5}{10}$$

Reduce the fraction \frac{5}{10} to lowest terms by extracting and canceling out 5.

$$\frac{1}{2}$$

Factor

$$\frac{1}{2} = 0.5$$