Instructions

What should come in place of the question mark (?) in the following question ?

Question 121

$$\frac{9}{10}+\frac{3}{11}+\frac{7}{15}= ?$$

Solution

(9/10)+(3/11)+(7/15) = (129/110) + 7/15 = (1/5)(129/22 +7/3) = 1/5(541/66) = 541/330

Converting 541/330 into mixed fraction we get $$1\frac{211}{330}$$

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