simlify (3^10÷3^-5)×3^-5(2)
Answers
Answer:
−
6
+
5
2
5
−
15
+3
2
3
2
=
(
10
+
3
)(
10
−
3
)
7
3
(
10
−
3
)
−
(
6
+
5
)(
6
−
5
)
2
5
(
6
−
5
)
−
(
15
−3
2
)(
15
+3
2
)
3
2
(
15
−3
2
)
=
10−3
7
3
(
10
−
3
)
−
6−5
2
5
(
6
−
5
)
−
15−18
3
2
(
15
−3
2
)
=
7
7
3
(
10
−
3
)
−
1
2
5
(
6
−
5
)
+
3
3
2
(
15
−3
2
)
=
21
21
30
−63−425
30
+210+21
30
−18∗7
=
21
21
=1
Step-by-step explanation:
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Simplification of Fractions
In simplification of fractions parenthesis can also be used. The three parenthesis (1st), {2nd}, [3rd] are used commonly.
Examples on simplification of fractions:
1. 3 1/3 ÷ 5/3 - 1/10 of 2 ½ + 7/4
Solution:
3 1/3 ÷ 5/3 - 1/10 of 2 ½ + 7/4
= (3 × 3 + 1)/3 ÷ 5/3 – 1/10 of (2 × 2 + 1)/2 + 7/4
= 10/3 ÷ 5/3 - 1/10 of 5/2 + 7/4
[‘of’ simplified]
= 10/3 × 3/5 – ½ × ½ + 7/4 [‘÷’ simplified]
= 2/1 - ¼ + 7/4 [‘×’ simplified]
= (2 × 4)/1 × 4) - (1 × 1)/4 × 1) + (7 × 1)/4 × 1)
= 8/4 - ¼ + 7/4
[Now the denominators are same of all the fractions]
= (8 – 1 + 7)/4 [‘+’ and ‘-‘ simplified]
= 14/4
= 7/2