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Decimals and Fractions Shortcuts & Tricks to solve problems Video Lecture

Video Timeline
Video Timeline
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00:00Introduction
00:01Quantitative Aptitude
01:01What will be fraction form of 0.3523?
05:10What is value of 5.55+5+5.5+5.555+5.05+5.00?
07:53What will be (0.15268 +0.45804)?
14:46Add 17.499, 17.85 and 17.333?
17:07What will be the value of 1x 0.3 x 0.01 0.003?
21:0319.399 + 10.33 + 7.82 +3.111 = ? a 40.66 b 40.65
22:43What is approximate value of 8459 + 11.98 - 23.99+
24:33What is value of 945.341-1042.792+875.435+31.025? a 908.004 b 810.008
26:04Which of the following is largest fraction amongst
37:04If a fraction's denominator is decreased by 80% and numerator is increased by 300%, the fraction becomes 2/9. What is the fraction?
38:47In 3 fractions when the largest fraction is divided by smallest fraction, the result 5/4 is greater than the middle fraction by %. If 3 sum of the three fractions is 2 what will be the difference between largest and smallest fraction?
41:06Express or of Rs.25.20 as a fraction of 1 of Rs. 36.
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FAQs on Decimals and Fractions Shortcuts & Tricks to solve problems Video Lecture - CSAT

1. What are some shortcuts and tricks to solve decimal and fraction problems quickly?
Ans. Some shortcuts and tricks to solve decimal and fraction problems quickly include: - Converting decimals to fractions by dividing the decimal by 1 and multiplying both the numerator and denominator by the same power of 10. - Simplifying fractions by finding the greatest common divisor (GCD) of the numerator and denominator and dividing both by it. - Adding and subtracting decimals by lining up the decimal points and carrying out the operation as usual. - Multiplying decimals by ignoring the decimal point and performing the multiplication. Then, placing the decimal point in the product by counting the total number of decimal places in the original numbers. - Dividing decimals by moving the decimal point in the divisor to the right until it becomes a whole number. Then, move the decimal point in the dividend the same number of places to the right and perform the division.
2. How can I convert a decimal to a fraction quickly?
Ans. To convert a decimal to a fraction quickly, divide the decimal by 1 and multiply both the numerator and denominator by the same power of 10. Simplify the resulting fraction by finding the greatest common divisor (GCD) of the numerator and denominator and dividing both by it. This will give you the simplified fraction equivalent to the decimal.
3. What is the process for adding and subtracting decimals?
Ans. To add or subtract decimals, line up the decimal points in the numbers and carry out the operation as usual. Add or subtract the digits to the right of the decimal point first, and then move to the left. If one number has fewer decimal places than the other, add zeros at the end of the shorter number to make them equal in length before performing the operation.
4. How can I multiply decimals quickly?
Ans. To multiply decimals quickly, ignore the decimal point and perform the multiplication as if the numbers were whole numbers. Count the total number of decimal places in the original numbers and place the decimal point in the product by moving from right to left, starting with the rightmost digit, and placing the decimal point after the same number of digits as the total decimal places counted.
5. What is the shortcut for dividing decimals?
Ans. To divide decimals quickly, move the decimal point in the divisor to the right until it becomes a whole number. Then, move the decimal point in the dividend the same number of places to the right and perform the division. Remember to place the decimal point in the quotient at the same position as the original dividend.
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Video Timeline
Video Timeline
arrow
00:00Introduction
00:01Quantitative Aptitude
01:01What will be fraction form of 0.3523?
05:10What is value of 5.55+5+5.5+5.555+5.05+5.00?
07:53What will be (0.15268 +0.45804)?
14:46Add 17.499, 17.85 and 17.333?
17:07What will be the value of 1x 0.3 x 0.01 0.003?
21:0319.399 + 10.33 + 7.82 +3.111 = ? a 40.66 b 40.65
22:43What is approximate value of 8459 + 11.98 - 23.99+
24:33What is value of 945.341-1042.792+875.435+31.025? a 908.004 b 810.008
26:04Which of the following is largest fraction amongst
37:04If a fraction's denominator is decreased by 80% and numerator is increased by 300%, the fraction becomes 2/9. What is the fraction?
38:47In 3 fractions when the largest fraction is divided by smallest fraction, the result 5/4 is greater than the middle fraction by %. If 3 sum of the three fractions is 2 what will be the difference between largest and smallest fraction?
41:06Express or of Rs.25.20 as a fraction of 1 of Rs. 36.
More
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