96. а) 1 + 3/8 = 8+3/8 = 11/8 = 1 3/8
97. а) 3 - 5/6 = 3/1 - 5/6 = 18-5/6 = 13/6 = 2 1/6
98. а) 2 3/8 + 5/8 = 19/8 + 5/8 = 24/8 = 3
99. а) 3 1/4 + 1 1/4 = ( 3 + 1 ) + ( 1/4 + 1/4 ) = 4 2/4
105. а) | - 2/3 | + | 4/9 | = 2/3 + 4/9 = 6+4/9 = 10/9 = 1 1/9