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 Calculate: 

5/7 + 21/31 + 52/33


1. 21350/7161
2. 21250/7161
3. 23250/7161
4. 21240/7161

1 Answer

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Best answer
Correct Answer - Option 2 : 21250/7161

Calculation

5/7 + 21/31 + 52/33

LCM of 7, 31 and 33 is 7161

⇒ \(\frac{{\left( {5 \times 31 \times 33} \right) + \;\left( {21 \times 7 \times 33} \right) + \;\left( {52 \times 7 \times 31} \right)}}{{7161}}\)

⇒ (5115 + 4851 + 11284)/7161

⇒ 21250/7161

∴ 5/7 + 21/31 + 52/33 is 21250/7161

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