# What is 490-:70?

Jul 23, 2016

7

#### Explanation:

Notice that both numbers have a zero on the right. So we can write this as:

$490 \div 70 = \frac{490}{70}$

$= \frac{49 \times 10}{7 \times 10}$

$= \frac{49}{7} \times \frac{10}{10}$

$= \frac{49}{7} \times 1$

$= \frac{{\cancel{49}}^{7}}{\left({\cancel{7}}^{1}\right)} = 7$