4. What is the ratio of 340 em to 51 m in its lowest form?
(1) 20:3 (2) 3 : 20 (3) 15:1 (4) 1 : 15
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Answer:
(4) 1 : 15
Step-by-step explanation:
51 m = 5100 cm
Required ratio = 340 / 5100
340 = 2 × 2 × 5 × 17
5100 = 2 × 2 × 3 ×5 × 5 × 17
HCF ( 340, 5100) = 2 × 2 × 5 × 17 = 340
Simplest ratio = ( 340 ÷ 340) / ( 5100 ÷ 340)
= 1 / 15
= 1 : 15
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