Question

express (77/8+7/80) as a decimal representation

Answer 1

take LCM
770+7/80
777/80
=9.7125
is the answer
...

Answer 2

Answer:

Decimal form of (77/8+7/80)

= 9.7125

Explanation:

Given (77/8 + 7/80)

= 77/8 + 0.7/8

= (77+0.7)/8

= 77.7/2³

Multiply numerator and denominator by 5³, we get

= (77.7×5³)/(2³×5³)

[To make 2^n × 5^m form ]

= 9712.5/(2×5)³

= 9712.5/10³

= 9712.5/1000

= 9.7125

Therefore,

(77/8+7/80) = 9.7125 [decimal form ]

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