Gmat Concepts :: Quantitaive

Front 1

Comparing +ve fractions::

i. Numerators are same.
Eg 4/5, 4/7

Back 1

Fraction with smaller denominatoris larger. Since numerator is divided into smaller number of parts.

4/5 > 4/7

Front 2

Comparing +ve fractions::

ii. Denominators are same.
Eg 5/8, 3/8

Back 2

Fraction with larger numerator is larger.

5/8 > 3/8

Front 3

Comparing +ve fractions::

iii. Num <> Den
Eg 5/7, 9/11

Back 3

1. Find common denominator
2. Find common numerator
3. Cross - multiply

5x11 ? 9x7
55 < 63
5/7 < 9/11

Front 4

Comparing Decimal fractions

0.7, 0.77, 0.07, 0.707, 0.077

Back 4

i. Add zeros after decimal so that all the decimals have same number of digits.

ii. Num determines order of values.

0.7, 0.77, 0.07, 0.707, 0.077
0.700, 0.770, 0.070, 0.707, 0.077
0.070<0.077<0.700<0.707<0.770
0.07<0.077<0.7<0.707<0.77

Front 5

Value of ::

0/0

Back 5

Undefined