Answers

Add 18/63 and 54/60

18/63 + 54/60 is 83/70.

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,
   18/63 = 18 × 20/63 × 20 = 360/1260
3. Likewise, for the 2nd fraction, since 60 × 21 = 1260,
   54/60 = 54 × 21/60 × 21 = 1134/1260
4. Add the two like fractions:
   360/1260 + 1134/1260 = 360 + 1134/1260 = 1494/1260
5. 1494/1260 simplified gives 83/70
6. So, 18/63 + 54/60 = 83/70
   In mixed form: 113/70

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