Solve 21/4+30%

$$2 \frac { 1 } { 4 } + 30 \%$$

Evaluate

$$\frac{51}{20}=2.55$$

Solution Steps

Multiply 2 and 4 to get 8.

$$\frac{8+1}{4}+\frac{30}{100}$$

Add 8 and 1 to get 9.

$$\frac{9}{4}+\frac{30}{100}$$

Reduce the fraction \frac{30}{100} to lowest terms by extracting and canceling out 10.

$$\frac{9}{4}+\frac{3}{10}$$

Least common multiple of 4 and 10 is 20. Convert \frac{9}{4} and \frac{3}{10} to fractions with denominator 20.

$$\frac{45}{20}+\frac{6}{20}$$

Since \frac{45}{20} and \frac{6}{20} have the same denominator, add them by adding their numerators.

$$\frac{45+6}{20}$$

Add 45 and 6 to get 51.

$$\frac{51}{20}$$

Factor

$$\frac{3 \cdot 17}{2 ^ {2} \cdot 5} = 2\frac{11}{20} = 2.55$$