Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 4 - 511 = _____
- 335 - 115 = _____
- 412 - 138 = _____
- 3114 - 57 = _____
(a)
4 -
511 = 3
1111 -
511 = 3
611 (b)
Make the denominators the same.
3
35 -
115 = 3
3 x 35 x 3 -
115 = 3
915 -
115 = 3
815 (c)
Make the denominators the same.
4
12 - 1
38 = 4
1 x 42 x 4 - 1
38 = 4
48 - 1
38 = 3
18 (d)
Make the denominators the same.
3
114 -
57 = 3
114 -
5 x 27 x 2 = 2
1514 -
1014 = 2
514Answer(s): 3
611, 3
815, 3
18, 2
514