Answers

Add 6/84 and 54/90

6/84 + 54/90 is 47/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 90 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 84 × 15 = 1260,
   6/84 = 6 × 15/84 × 15 = 90/1260
3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
   54/90 = 54 × 14/90 × 14 = 756/1260
4. Add the two like fractions:
   90/1260 + 756/1260 = 90 + 756/1260 = 846/1260
5. 846/1260 simplified gives 47/70
6. So, 6/84 + 54/90 = 47/70

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