Question

Jill has 3/4 of a yard of ribbon. Tammy has 4/7 of a yard. how much do they have together?

Answer 1

37/28 or 1and9/28 you have to find the common denominator

Answer 2

3/4+4/7
12/28+16/28
28/28= 1

they  has one full ribbon. hope its right