1) 5/18 + 7/18 = 12/18 = 2/32) 5/12 + 4/12 = 9/12 = 3/43) 2(15/56) + 4(13/56) = 30/56 + 52/56 = 82/56 = 41/284) 7(47/48) - 3(17/48) = 329/48 - 51/48 = 278/48 = 139/24
1) 5/18 + 7/18 = 12/18 = 2/3
2) 5/12 + 4/12 = 9/12 = 3/4
3) 2(15/56) + 4(13/56) = 30/56 + 52/56 = 82/56 = 41/28
4) 7(47/48) - 3(17/48) = 329/48 - 51/48 = 278/48 = 139/24