Question

2 5/8+ 1 3/8 mixed number 7 1/4 +2 3/4 mixed number 2 2/5+ 4 2/5

Answer 1

`2(5)/(8)+1(3)/(8)=2+(5)/(8)+1+(3)/(8)=(2+1)+\left((5)/(8)+(3)/(8)\right)=3+(5+3)/(8)\\\\=3+(8)/(8)=3+1=4\\----------------------\\7(1)/(4)+2(3)/(4)=7+(1)/(4)+2+(3)/(4)=(7+2)+\left((1)/(4)+(3)/(4)\right)=9+(1+3)/(4)\\\\=9+(4)/(4)=9+1=10\\----------------------\\2(2)/(5)+4(2)/(5)=2+(2)/(5)+4+(2)/(5)=(2+4)+\left((2)/(5)+(2)/(5)\right)=6+(2+2)/(5)\\\\=6+(4)/(5)=6(4)/(5)`