Answers

Add 6/63 and 21/56

6/63 + 21/56 is 79/168.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 56 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 63 × 8 = 504,
   6/63 = 6 × 8/63 × 8 = 48/504
3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
   21/56 = 21 × 9/56 × 9 = 189/504
4. Add the two like fractions:
   48/504 + 189/504 = 48 + 189/504 = 237/504
5. 237/504 simplified gives 79/168
6. So, 6/63 + 21/56 = 79/168

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