Answers

Add 18/63 and 12/60

18/63 + 12/60 is 17/35.

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,
   12/60 = 12 × 21/60 × 21 = 252/1260
4. Add the two like fractions:
   360/1260 + 252/1260 = 360 + 252/1260 = 612/1260
5. 612/1260 simplified gives 17/35
6. So, 18/63 + 12/60 = 17/35

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ³⁶/₆₃+¹²/₆₀ ¹⁸/₆₃+²⁴/₆₀ ⁵⁴/₆₃+¹²/₆₀ ¹⁸/₆₃+³⁶/₆₀ ⁹⁰/₆₃+¹²/₆₀ ¹⁸/₆₃+⁸⁴/₆₀

Add Fractions Calculator