3 7/10 + 10 4/15 란 무엇입니까?

1 단계: 부적절한 분수로 변환

#3(10)# #+# #7# #=# #37#

#15(10)# #+# #4#=154

#154/15#

2 단계: LCD 찾기

#10#: #2(5)#

#15#: #3(5)#

#2(3)(5)##=# 30

3 단계: #37##(3)##/##30# #+# #154(2)##/# 30= 419/30