Solve 31/4-11/2

$$3 \frac { 1 } { 4 } - 1 \frac { 1 } { 2 }$$

Evaluate

$$\frac{7}{4}=1.75$$

Solution Steps

Multiply 3 and 4 to get 12.

$$\frac{12+1}{4}-\frac{1\times 2+1}{2}$$

Add 12 and 1 to get 13.

$$\frac{13}{4}-\frac{1\times 2+1}{2}$$

Multiply 1 and 2 to get 2.

$$\frac{13}{4}-\frac{2+1}{2}$$

Add 2 and 1 to get 3.

$$\frac{13}{4}-\frac{3}{2}$$

Least common multiple of 4 and 2 is 4. Convert \frac{13}{4} and \frac{3}{2} to fractions with denominator 4.

$$\frac{13}{4}-\frac{6}{4}$$

Since \frac{13}{4} and \frac{6}{4} have the same denominator, subtract them by subtracting their numerators.

$$\frac{13-6}{4}$$

Subtract 6 from 13 to get 7.

$$\frac{7}{4}$$

Factor

$$\frac{7}{2 ^ {2}} = 1\frac{3}{4} = 1.75$$