Solve 420div55*3-100

$$420 \div 55 \times 3-100$$

Evaluate

$$-\frac{848}{11}\approx -77.090909091$$

Solution Steps

Reduce the fraction \frac{420}{55} to lowest terms by extracting and canceling out 5.

$$\frac{84}{11}\times 3-100$$

Express \frac{84}{11}\times 3 as a single fraction.

$$\frac{84\times 3}{11}-100$$

Multiply 84 and 3 to get 252.

$$\frac{252}{11}-100$$

Convert 100 to fraction \frac{1100}{11}.

$$\frac{252}{11}-\frac{1100}{11}$$

Since \frac{252}{11} and \frac{1100}{11} have the same denominator, subtract them by subtracting their numerators.

$$\frac{252-1100}{11}$$

Subtract 1100 from 252 to get -848.

$$-\frac{848}{11}$$

Factor

$$-\frac{848}{11} = -77\frac{1}{11} = -77.0909090909091$$