In which of these cases is the HCF the same as the common multiplier, like problem. Class 7
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In which of these cases is the HCF the same as the common multiplier, like problem. Class 7
Question 1.
In which of these cases is the HCF the same as the common multiplier, like problem (b) where the HCF is 10? Explore a few more examples of this type to understand when this happens. Class 7
Solution:
In (b) and (c), HCF is the common multiplier, while in (a) and (d), common factor (highest) of two remaining numbers is also included in the product as HCF.
Question 2.
You can try this method for these pairs of numbers. Class 7
(a) 90 and 150
Solution:
HCF = 15 × 2 = 30
LCM = 15 × 2 × 3 × 5 = 450
(b) 84 and 132
Solution:
HCF = 12
LCM = 12 × 7 × 11 = 924.