Answers

Add 5/84 and 7/70

5/84 + 7/70 is 67/420.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 70 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   5/84 = 5 × 5/84 × 5 = 25/420
3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
   7/70 = 7 × 6/70 × 6 = 42/420
4. Add the two like fractions:
   25/420 + 42/420 = 25 + 42/420 = 67/420
5. So, 5/84 + 7/70 = 67/420

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