Answers

Add 56/63 and 9/20

56/63 + 9/20 is 241/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 20 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 63 × 20 = 1260,
   56/63 = 56 × 20/63 × 20 = 1120/1260
3. Likewise, for the 2nd fraction, since 20 × 63 = 1260,
   9/20 = 9 × 63/20 × 63 = 567/1260
4. Add the two like fractions:
   1120/1260 + 567/1260 = 1120 + 567/1260 = 1687/1260
5. 1687/1260 simplified gives 241/180
6. So, 56/63 + 9/20 = 241/180
   In mixed form: 161/180

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