Find the following values without a calculator.
Give your answers in this manner. (Eg 1
35, 3
25, 4
23, 5
67)
- 4 - 17 = _____
- 229 - 127 = _____
- 515 - 3120 = _____
- 5110 - 45 = _____
(a)
4 -
17 = 3
77 -
17 = 3
67 (b)
Make the denominators the same.
2
29 -
127 = 2
2 x 39 x 3 -
127 = 2
627 -
127 = 2
527 (c)
Make the denominators the same.
5
15 - 3
120 = 5
1 x 45 x 4 - 3
120 = 5
420 - 3
120 = 2
320 (d)
Make the denominators the same.
5
110 -
45 = 5
110 -
4 x 25 x 2 = 4
1110 -
810 = 4
310Answer(s): 3
67, 2
527, 2
320, 4
310