Answers

Add 54/63 and 18/60

54/63 + 18/60 is 81/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 60 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 63 × 20 = 1260,
   54/63 = 54 × 20/63 × 20 = 1080/1260
3. Likewise, for the 2nd fraction, since 60 × 21 = 1260,
   18/60 = 18 × 21/60 × 21 = 378/1260
4. Add the two like fractions:
   1080/1260 + 378/1260 = 1080 + 378/1260 = 1458/1260
5. 1458/1260 simplified gives 81/70
6. So, 54/63 + 18/60 = 81/70
   In mixed form: 111/70

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