Solve 72/7*21/17

$$7 \frac { 2 } { 7 } \times 2 \frac { 1 } { 17 }$$

Evaluate

$$15$$

Solution Steps

Multiply 7 and 7 to get 49.

$$\frac{49+2}{7}\times \frac{2\times 17+1}{17}$$

Add 49 and 2 to get 51.

$$\frac{51}{7}\times \frac{2\times 17+1}{17}$$

Multiply 2 and 17 to get 34.

$$\frac{51}{7}\times \frac{34+1}{17}$$

Add 34 and 1 to get 35.

$$\frac{51}{7}\times \frac{35}{17}$$

Multiply \frac{51}{7} times \frac{35}{17} by multiplying numerator times numerator and denominator times denominator.

$$\frac{51\times 35}{7\times 17}$$

Do the multiplications in the fraction \frac{51\times 35}{7\times 17}.

$$\frac{1785}{119}$$

Divide 1785 by 119 to get 15.

$$15$$

Factor

$$3\times 5$$