Solve 42/7*31/2

$$4 \frac { 2 } { 7 } \cdot 3 \frac { 1 } { 2 }$$

Evaluate

$$15$$

Solution Steps

Multiply 4 and 7 to get 28.

$$\frac{28+2}{7}\times \frac{3\times 2+1}{2}$$

Add 28 and 2 to get 30.

$$\frac{30}{7}\times \frac{3\times 2+1}{2}$$

Multiply 3 and 2 to get 6.

$$\frac{30}{7}\times \frac{6+1}{2}$$

Add 6 and 1 to get 7.

$$\frac{30}{7}\times \frac{7}{2}$$

Multiply \frac{30}{7} times \frac{7}{2} by multiplying numerator times numerator and denominator times denominator.

$$\frac{30\times 7}{7\times 2}$$

Cancel out 7 in both numerator and denominator.

$$\frac{30}{2}$$

Divide 30 by 2 to get 15.

$$15$$

Factor

$$3\times 5$$