Solve 123/5-73/4=

$$12 \frac { 3 } { 5 } - 7 \frac { 3 } { 4 } =$$

Evaluate

$$\frac{97}{20}=4.85$$

Solution Steps

Multiply 12 and 5 to get 60.

$$\frac{60+3}{5}-\frac{7\times 4+3}{4}$$

Add 60 and 3 to get 63.

$$\frac{63}{5}-\frac{7\times 4+3}{4}$$

Multiply 7 and 4 to get 28.

$$\frac{63}{5}-\frac{28+3}{4}$$

Add 28 and 3 to get 31.

$$\frac{63}{5}-\frac{31}{4}$$

Least common multiple of 5 and 4 is 20. Convert \frac{63}{5} and \frac{31}{4} to fractions with denominator 20.

$$\frac{252}{20}-\frac{155}{20}$$

Since \frac{252}{20} and \frac{155}{20} have the same denominator, subtract them by subtracting their numerators.

$$\frac{252-155}{20}$$

Subtract 155 from 252 to get 97.

$$\frac{97}{20}$$

Factor

$$\frac{97}{2 ^ {2} \cdot 5} = 4\frac{17}{20} = 4.85$$