Answers

Add 42/84 and 63/75

42/84 + 63/75 is 67/50.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 75 is 2100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2100
2. For the 1st fraction, since 84 × 25 = 2100,
   42/84 = 42 × 25/84 × 25 = 1050/2100
3. Likewise, for the 2nd fraction, since 75 × 28 = 2100,
   63/75 = 63 × 28/75 × 28 = 1764/2100
4. Add the two like fractions:
   1050/2100 + 1764/2100 = 1050 + 1764/2100 = 2814/2100
5. 2814/2100 simplified gives 67/50
6. So, 42/84 + 63/75 = 67/50
   In mixed form: 117/50

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