Find the following values without a calculator.
Give your answers in this manner. (Eg
12,
23,
34,
45)
- 5 - 910 = _____
- 349 - 127 = _____
- 824 - 138 = _____
- 6314 - 47 = _____
(a)
5 -
910 = 4
1010 -
910 = 4
110 (b)
Make the denominators the same.
3
49 -
127 = 3
4 x 39 x 3 -
127 = 3
1227 -
127 = 3
1127 (c)
Make the denominators the same.
8
24 - 1
38 = 8
2 x 24 x 2 - 1
38 = 8
48 - 1
38 = 7
18 (d)
Make the denominators the same.
6
314 -
47 = 6
314 -
4 x 27 x 2 = 5
1714 -
814 = 5
914Answer(s): 4
110, 3
1127, 7
18, 5
914