Question

1. 3/5- 1/3=
2. 2.66x5.4=
3. 5 3/5 - 3 4/5=
4. 15961+92307=
5. 23281- 16754=

Answer 1

[1] 4/15

[2] 14.364

[3] 1 4/5

[4] 108268

[5] 6527

Explanation:

[1] 3/5 - 1/3

FInd common multiplier

`=(9)/(15)-(5)/(15)`

`\mathrm{Apply\:the\:fraction\:rule}:\quad (a)/(c)-(b)/(c)=(a-b)/(c)`

`=(9-5)/(15)`

`(4)/(15)`

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[2] 2.66 * 5.4

`\mathrm{Multiply\:without\:the\:decimal\:points,\:then\:put\:the\:decimal\:point\:in\:the\:answer}`

266 * 54

`2.66\mathrm{\:has\:}2\mathrm{\:decimal\:places}`

`5.4\mathrm{\:has\:}1\mathrm{\:decimal\:place}`

`\mathrm{Therefore,\:the\:answer\:has\:}3\mathrm{\:decimal\:places}`

`=14.364`

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[3] 5 3/5 - 3 4/5

`=4(8)/(5)-3(4)/(5)`

`=1+(4)/(5)`

`=1(4)/(5)`

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[4] 15961+92307

Add:

108268

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[5] 23281- 16754

Subtract:

6527

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

~Lenvy~

Answer 2

1. 4/15

2. 14.364

3. 1 4/5

4. 108268

5. 6527

Hope it help <3