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8 0

3 years ago

Describe how to compare the two ratios 5:8 to 7:9. Tell each step to set up the ratios, then explain what to do to be able to co

Lera25 [3.4K]

Step-by-step explanation:

The ratio's can be expressed as fractions and you may compare those.

5 : 8 = 5/8
7 : 9 = 7/9

In order to compare fractions you need to bring them into equal denominator.

8 and 9 have LCM of 8*9 = 72 since they have no common factors.

<u>The equivalent fractions with common denominator are:</u>

5/8 = 9*5/(9*8) = 45/72
7/9 = 8*7/(8*9) = 56/72

<u>Now we can compare the fractions:</u>

45/72 < 56/72, since 45 < 56

4 0

2 years ago