Answers

Add 54/84 and 6/90

54/84 + 6/90 is 149/210.

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,
   54/84 = 54 × 15/84 × 15 = 810/1260
3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
   6/90 = 6 × 14/90 × 14 = 84/1260
4. Add the two like fractions:
   810/1260 + 84/1260 = 810 + 84/1260 = 894/1260
5. 894/1260 simplified gives 149/210
6. So, 54/84 + 6/90 = 149/210

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