Subtract the fractions. (Pages 83 - 85)
1⁄2 - 1⁄5 = 3⁄10
9⁄10 - 1⁄9 = 71⁄90
2⁄3 - 3⁄5 = 1⁄15
7⁄9 - 3⁄8 = 29⁄72
3⁄7 - 1⁄9 = 20⁄63
3⁄4 - 4⁄7 = 5⁄28
5⁄7 - 3⁄10 = 29⁄70
3⁄5 - 1⁄2 = 1⁄10
3⁄5 - 1⁄3 = 4⁄15
3⁄4 - 2⁄3 = 1⁄12
3⁄10 - 1⁄9 = 17⁄90
4⁄5 - 2⁄3 = 2⁄15
5⁄7 - 1⁄2 = 3⁄14
5⁄6 - 1⁄2 = 1⁄3
5⁄7 - 5⁄9 = 10⁄63
7⁄10 - 1⁄4 = 9⁄20
3⁄8 - 1⁄9 = 19⁄72
1⁄3 - 1⁄9 = 2⁄9
2⁄5 - 1⁄4 = 3⁄20
5⁄9 - 1⁄8 = 31⁄72
4⁄5 - 1⁄8 = 27⁄40
7⁄9 - 3⁄10 = 43⁄90
5⁄7 - 3⁄5 = 4⁄35
4⁄9 - 2⁄5 = 2⁄45
3⁄4 - 1⁄3 = 5⁄12
3⁄4 - 1⁄2 = 1⁄4
3⁄4 - 3⁄7 = 9⁄28
3⁄8 - 1⁄5 = 7⁄40
2⁄7 - 1⁄5 = 3⁄35
2⁄3 - 2⁄7 = 8⁄21
1⁄2 - 1⁄4 = 1⁄4
4⁄5 - 1⁄7 = 23⁄35
2⁄5 - 1⁄3 = 1⁄15
7⁄10 - 1⁄2 = 1⁄5
5⁄8 - 5⁄9 = 5⁄72
9⁄10 - 5⁄9 = 31⁄90
3⁄4 - 4⁄9 = 11⁄36
2⁄3 - 3⁄10 = 11⁄30
4⁄5 - 1⁄2 = 3⁄10
1⁄3 - 1⁄5 = 2⁄15
8⁄9 - 6⁄7 = 2⁄63
3⁄7 - 1⁄3 = 2⁄21