Which has the largest value?

a) 1/5 +1/5+ 1/5

b) 3/5*2/5 – 4/5*1/5

c) (½)^3 + (1/2)^2 + (1/2)^1

d) ½ +1/3 +1/6+1/8

e) 1/9 * (1/3+9/27+9/12)

Answer

To find the answer to the above question in the shortest time require remembering just two rules:

a) For Fraction a/b where a>b, then a/b is greater than b/a

b) Finding LCM is the easiest ways to simplify operation on fractions

Now let us try each answer choices

a) 1/5 +1/5+ 1/5

3/5

b) 3/5*2/5 – 4/5*1/5

(6/25-4/25) = 2/25

Answer Choice B less than answer choice a, ELIMINATE

c) (½)^3 + (1/2)^2 + (1/2)^1

1/8 + ¼ + ½

= 7/8

d) ½ +1/3 +1/6+1/8

LCM = 24

= (12+8+4+3)/24

= 27/24

Answer Choice D greater than 1 and greater than A and C

Eliminate A & C

e) 1/9 * (1/3+9/27+9/12)

1/9 * (9/27 + 13/12)

Instead of adding the numbers in the bracket, group 1/3 and 9/12 and add it to get 13/12

...

Categories : Fractions |

To answer questions that involve negative fractions and exponents, you have to know the following rules: |

Have you wondered how writers can make a seemingly simple GMAT topic like fractions into time-consuming calculations. One strategy that GMAT test takers must adopt to simplify the calculations. For example |

Categories : FractionsHow many inches are in a mile? (There are 5,280 feet in 1 mile and 12 inches in one foot) |

If Y < 0 and -1 < -1 + X/Y < 0, which must be true? |

Categories : FractionsExactly 5/6 of the cows on a certain farm have cow bells. If exactly half of the cows with bells are |