Sandy bought 3/4 yard of red ribbon and 2/3 yard of white ribbon to make some hair bows. altogether, how many yards of ribbon did she buy?

First off, find a common denominator, (12)

3/4

3*3=9
and
4*3=12

Then, change 2/3

2/3

2*4=8
and
3*4=12

Then just add them together, 9/12+8/12.

Thus, your answer, is 17/12 or 1 5/12.

Dfe congruent to dfg