Answers

Add 9/42 and 21/98

9/42 + 21/98 is 3/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 98 is 294
   
   Next, find the equivalent fraction of both fractional numbers with denominator 294
2. For the 1st fraction, since 42 × 7 = 294,
   9/42 = 9 × 7/42 × 7 = 63/294
3. Likewise, for the 2nd fraction, since 98 × 3 = 294,
   21/98 = 21 × 3/98 × 3 = 63/294
4. Add the two like fractions:
   63/294 + 63/294 = 63 + 63/294 = 126/294
5. 126/294 simplified gives 3/7
6. So, 9/42 + 21/98 = 3/7

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