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Earn +20 ptsQ: What is the HCF of 49 21 and 84?
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What is the highest common factor of 49 84 and 91?
The GCF is 7.
What number can go into 63 84 105 evenly?
The hcf is 21
How do you find LCM of 28 and 21?
First you express the numbers as the product of their prime factors: 28 = 2x2x7 21 = 3x7 Next you find the HCF. In this case, the HCF is 7. Finally, you multiply the numbers together and divide by the HCF. 28x21/7 = 84 Therefore the LCM of 28 and 21 is 84.
What is the HCF and LCM of 42 and 84?
hcf = 42, lcm = 84.
Can 84 over 196 be simplified?
84/196= 42/98 = 21/49 = 3/7
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