Question

compare:3\4 and 18\20 . full
answer​

Answer 1

Answer:

18/20 reduced is 9/10

So, 18/20 is greater than 3/4

Answer 2

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Find the least common denominator or LCM of the two denominators:

LCM of 4 and 20 is 20

For the 1st fraction, since 4 × 5 = 20,

$\frac{3}{4} = \frac{ 3 \times 5}{4 \times 5 } = \frac{15}{20}$

Likewise, for the 2nd fraction, since 20 × 1 = 20,

$\frac{18}{20} = \frac{18 \times 1}{20 \times 1} = \frac{18}{20}$

Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction

$\frac{15}{20} < \frac{18}{20} or \: \frac{3}{4} < \frac{18}{20}$

hope it helps you