7
-16 - 7 = -23
51 minus 27 3/7 = 23 4/7
-7 -(-30) = 23
23/24 minus 7/8 is 1/12
6/7 minus 1/5 is 23/35.
The easiest way to find the distance between any two numbers on a number line is the bigger number minus the smaller. Here 23 - (-7) = 23+7 = 30. Remember that minus a negative number is the same as plus that number.
1/12
33/23 - 7/8 = 264/184 - 161/184 = 103/184
180 - 1 7/30 = 178 23/30
1,718 minus 23 is 1,695.
23