Find the following values without a calculator.
Give your answers in this manner. (Eg
12,
23,
34,
45)
- 6 - 112 = _____
- 327 - 114 = _____
- 934 - 2316 = _____
- 8116 - 78 = _____
(a)
6 -
112 = 5
1212 -
112 = 5
1112 (b)
Make the denominators the same.
3
27 -
114 = 3
2 x 27 x 2 -
114 = 3
414 -
114 = 3
314 (c)
Make the denominators the same.
9
34 - 2
316 = 9
3 x 44 x 4 - 2
316 = 9
1216 - 2
316 = 7
916 (d)
Make the denominators the same.
8
116 -
78 = 8
116 -
7 x 28 x 2 = 7
1716 -
1416 = 7
316Answer(s): 5
1112, 3
314, 7
916, 7
316