Rewrite 28+49 using greatest common factor

Find the GCF of 28 and 49, if their LCM is 196.

Solution:

∵ LCM × GCF = 28 × 49

⇒ GCF(28, 49) = (28 × 49)/196 = 7

Therefore, the greatest common factor of 28 and 49 is 7.

if the pizza is divided equally into 2 equal halves then you would get

πr^2/2

where r is the radius of the pizza.

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