Question

please answer this question ​

Answer 1

Step-by-step explanation:

LCM OF 3 AND 10

3×10=30

10×3=30

HENCE, THE LCM IS 30

3 by 4 × 10 by 10 =30 by 40

7 by 10 × 3 by 3 = 21 by 30

now denominator will be same

=30 +21

30

=51

30

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