Math, asked by SumitScientist, 1 year ago

Find value by shortcut

Attachments:

alessre: 1/5 + (999 + 494/495) × 99;
= 1/5 +(494505+494/495) ×99 ;
= 1/5 +(494999/495) ×99 ;
= 999000 -99+ 495/5 = 99000-99 +99 = 999000.

Answers

Answered by alessre
12
Hello,
1/5+999 494/495×99;
=1/5 + (999 + 494/495) × 99;
= 1/5 +(494505+494/495) ×99 ;
= 1/5 +(494999/495) ×99 ;
=1/5+494999/5;
=1+494999/5;
=495000/5;
= 99000

bye :-)

kvnmurty: right
Answered by kvnmurty
21
Evaluation of fraction by shortcut method without using long multiplications.

\frac{1}{5}+999\frac{494}{495} \times 99\\\\=\frac{1}{5}+[999 + \frac{494}{495}] \times 99\\\\=\frac{1}{5}+[999+1 - \frac{1}{495}] \times 99\\\\=\frac{1}{5}+1000*99-\frac{99}{495}\\\\=\frac{1}{5}+99,000-\frac{1}{5}\\\\=99,000

answer is 99, 000


kvnmurty: :-)
SumitScientist: but 1/495 kaise aaya
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