1) answer B
steps: add 1/6 + 3/6
= 4/6
simplify (divide out 2)
= 2/3
2) answer B
steps: subtract 2(3/4) - 1(2/4)
(2-1= 1) ((3/4)-(2/4)= 1/4)
= 1(1/4)
3) answer B
steps: subtract (7/8) - (5/8)
= (2/8)
simplify by dividing out 2
= 1/4
4) answer D
steps: add 5(8/12) + 2(5/12)
(5+2 =7) ((8/12)+(5/12)= 13/12)
** 13/12= 1(1/12)
7+ 1(1/12)
= 8 (1/12)
5) answer B
steps: subtract 1(2/6) - (4/6)
** change 1(2/6) into an improper fraction:
1 x 6 = 6
6 + 2 = 8
= 8/6
(8/6) - (4/6)
= 4/6
simplify by dividing out 2
= 2/3
