fractions when reduced to a common denominator are 91·07324 and 137·32100 (138). Their difference is
| 13732100 - 9107324 | , which is | 4624776 |
|---|---|---|
| 100000 | 100000 |
or 46·24776. This may be most simply done as follows: write the less number under the greater, so that its decimal point may fall under that of the greater, thus:
- 137·321
- 91·07324
- 46·24776
Subtract the lower from the upper line, and wherever there is a figure in one line and not in the other, proceed as if there were a cipher in the vacant place.
EXERCISES.
| What is | 12362 - 274·22107 + ·5; |
|---|---|
| 9976·2073942 - ·00143976728; | |
| and | 1·2 + ·03 + ·004 - ·0005? |
| Answer , | 12088·27893, 9976·20595443272; and 1·2335. |
- The multiplication of a