# Question #6baff

##### 1 Answer

Jan 26, 2017

See explanation...

#### Explanation:

Fractions typically take the form

In a reduced fraction, the numerator and denominator have no common factor larger than

So in the given example, Tanya calculated:

#76/91 xx 7/19 = (76xx7)/(91xx19) = (4xxcolor(red)(cancel(color(black)(19)))xxcolor(green)(cancel(color(black)(7))))/(color(green)(cancel(color(black)(7)))xx13xxcolor(red)(cancel(color(black)(19)))) = 4/13#

So:

#N = 4# ,#D = 13# and#N+D = 17#