Question

Find the difference between 3/7and7/9

Answer 1

Difference=3/7-7/9

Cross multiply the numerators and denominators in numerator place:

Multiply denominator in the bottom :

(27-49)/63

=-12/63

=-4/21

This is the answer.

Difference of 7/9-3/7 will be -(3/7-7/9)

=-(-4/21)

=4/21

Hope you understood.

Answer 2

answer of this Question is 4/21