Answers

Add 15/84 and 6/35

15/84 + 6/35 is 7/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 35 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   15/84 = 15 × 5/84 × 5 = 75/420
3. Likewise, for the 2nd fraction, since 35 × 12 = 420,
   6/35 = 6 × 12/35 × 12 = 72/420
4. Add the two like fractions:
   75/420 + 72/420 = 75 + 72/420 = 147/420
5. 147/420 simplified gives 7/20
6. So, 15/84 + 6/35 = 7/20

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