Respuesta :
					                   1) change to improper fractions
7/4 + 21/8
2) find common denominator
14/8 + 21/8
3) Add
35/8
4) change back to mixed number
answer: 4 3/8
					                
					             7/4 + 21/8
2) find common denominator
14/8 + 21/8
3) Add
35/8
4) change back to mixed number
answer: 4 3/8
 
					                  