Question

5
a. Using appropriate properties, Find
+
+*+72+(-1)
9
3​

Answer 1

Using appropriate properties find.−
3
2
​
×
5
3
​
+
2
5
​
−
5
3
​
×
6
1
​

EASY
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ANSWER
−
3
2
​
×
5
3
​
+
2
5
​
−
5
3
​
×
6
1
​


⇒ −
3
2
​
×
5
3
​
−
5
3
​
×
6
1
​
+
2
5
​
[ Using commutativity of rational numbers ]

⇒ −
5
3
​
×(
3
2
​
+
6
1
​
)+
2
5
​
[ By distributions ]

⇒ −
5
3
​
×(
6
2×2+1
​
)+
2
5
​


⇒ −
5
3
​
×
6
5
​
+
2
5
​


⇒
2
−1
​
+
2
5
​


⇒
2
−1+5
​
=
2
4
​
=2