21/56 = 3/8
and
35/70 = 1/2 = 4/8
So the sum is equivalent to 3/8 + 4/8 = 7/8
56-21 = 35
56+35 = 91
(8/-5) + (4/7) = (-56/35) + (20/35) = -36/35
4 + 24 + 56 + 35 - 25 = 94
5/21 + 1/7 = 56/147 or 8/21
35 and 21 35/7=5 21/7=3 35+21=56
21/56 OR 21 -- 56
35/56 = 5/8
56
8/5
Find the difference. 77 - 35 = 42 Divide by 2. 42 / 2 = 21 Check your work. 35 + 21 = 56 77 - 21 = 56 56 is the number that is equally distanced between the numbers 35 and 77.
To find the number halfway between any two numbers x and y, add x and y, then divide the answer by 2. So for 21 and 35, 21+ 35 = 56. 56/2 = 28. You can check your answer by seeing that 21 + 7 = 28 and 35 - 7 = 28.